The phrase "a portion that was" is correct and usable in written English.
It can be used when referring to a specific part of something that existed or was previously mentioned.
Example: "The report included a portion that was particularly relevant to our discussion on budget allocation."
Alternatives: "a segment that was" or "a part that was".
The aid was divided among the locals and each man got a portion that was enough for two days.
Entree choices that were especially pleasing were the fried oysters (a portion that was larger than the appetizer serving, but just as fresh, succulent and flavorful) and grilled Atlantic salmon, a decent-sized steak expertly grilled with a crisp edge and sweet, delicate interior.
It was just a couple months back that it emerged that Winklevoss Capital, the investment firm/family trust founded by Cameron and Tyler Winklevoss (of early Facebook fame), had bought up approximately one percent of all the outstanding quantity of Bitcoins, the alternative digital currency — a portion that was then worth around $11 million.
Pigot next organized a smaller raiding force to go to lower Freetown (a portion that was later separated to form Fall River).
These findings were similar to a previous report (Fisher et al., 2003) that offering a portion, that was twice age-appropriate, increased the amount eaten by 25%, again a reflection of a larger amount consumed per bite.
This approach allowed isolation of four sequences [GenBank: HM126466, HM126467, HM126468, HM126469] that ranged between 4,062 bp and 4,263 bp (from start to stop codon) (Table 2), and included a portion that was 100% identical to the DQ474240, DQ474241, J4.2 and TRI5.2 sequences.
"There's a portion that are never tested," she said.
"Every time we have had a change, there is a portion that is viable and helpful," she said.
Domestic discretionary programs account for about 15 percent of the annual budget, a portion that is not growing.
Sampling is the removal from a given lot of material a portion that is representative of the whole yet of convenient size for analysis.
"Every child's appetite is different so portion sizes aren't set nationally - but cooks do get to know their pupils, and should make sure they are getting a portion that's approriate for them".
