commensurately vs proportionately

commensurately

adv
  • In a commensurate manner; so as to be equal or proportionate. 

  • With equal measure or extent. 

proportionately

adv
  • In a proportionate manner; with due proportion; proportionally. 

How often have the words commensurately and proportionately occurred in a corpus of books? (source: Google Ngram Viewer )