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Question
Verify the following:
91 : 104 : : 119 : 136
Solution
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.
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