The phrase "a far smaller proportion" is correct and usable in written English.
It can be used when comparing sizes or amounts, indicating that one quantity is significantly less than another.
Example: "In the recent survey, a far smaller proportion of participants reported feeling satisfied with their jobs compared to last year."
Alternatives: "a significantly lower percentage" or "a much lesser share".
A far smaller proportion is recycled.
For both companies, Japan makes up a far smaller proportion of sales than the all-important American market.
The artist's resale right (ARR) benefits a far smaller proportion of artists than its supporters might assume.
With only around 415 outlets worldwide and retail sales a far smaller proportion of overall revenues than at the fashion brand, there is plenty of room for growth.
Many selective colleges accept a third or more of their early decision applicants, but accept a far smaller proportion of students later in the admissions cycle.
Poor families are spending a far smaller proportion of their income on food today than they did a generation ago, she says.
The Care Quality Commission, the NHS care regulator, pointed out that more recent patient experience surveys had found that far smaller proportions of patients than those highlighted by the LSE report were unhappy with their care.
It was pointed out in the previous study (Yang and Lee 2017b; Kim et al. 2016) that the nature of the EMV mix proportions leads to a far smaller amount of fine aggregates, in some case less than 600 kg/m3, creating a harsh mix.
Mere instinct suggests a far smaller number.
But the Keynesians and other apologists for statism say "yes". In the good old days, when California state government and spending were far smaller in proportion to the local economy (prior to the 1950s), the state's entrepreneurs were largely left free to accomplish great things.
For one thing, levels of personal debt are far lower and a smaller proportion of cars are bought on credit.
