"these results are in line with" is a correct and usable phrase in written English. You can use it when there is a comparison being made between different results or experiments. For example: "The results of the experiment show an increase in performance when using the new software. These results are in line with our hypothesis.".
These results are in line with Isham (2002).
These results are in line with our above observations.
All these results are in line with SU.
These results are in line with the results described in the present study.
These results are in line with previous studies[24, 27, 33].
These results are in line with previous research findings of science journalist questioning.
These results are in line with other combat sports, such as judo [10].
I love the desktop app, it’s always running on my Mac. Ludwig is the best English buddy, it answers my 100 queries per day and stays cool.
Cristina Valenza
Retail Lead Linguist @ Apple Inc.