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Question
Verify the following:
60 : 105 : : 84 : 147
Solution
60:105::84:147
`60/(105)=(60 ÷ 15)/(105 ÷ 15)=4/7` (H.C.F. of 60 and 105 is 15.)
`84/147=(84 ÷ 21)/(147 ÷ 21)=4/7` (H.C.F. of 84 and 147 is 21.)
Hence, 60:105::84:147 are in proportion.
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