Question

Verify the following:

91 : 104 : : 119 : 136

Answer 1

91:104::119:136

`91/104=(91 ​÷ 13)/(104 ​÷ 13)=7/8`   (H.C.F. of 91 and 104 is 13.)

`119/136=(119 ​÷ 17)/(136 ​÷ 17)=7/8`   (H.C.F. of 11 and 136 is 17.)

Hence, 91:104::119:136 are in proportion.