Finding the Fourth Proportional to 135.66, 187.14 and 91.92
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Solution
The fourth proportional to 135.66, 187.14 and 91.92 is: 126.80
Step by Step Solution
- Step 1: Write the proportion equation
135.66 : 187.14 = 91.92 : x - Step 2: Convert to fraction form
135.66/187.14 = 91.92/x - Step 3: Cross multiply
135.66x = 187.14 × 91.92 - Step 4: Simplify right side
135.66x = 17,201.91 - Step 5: Solve for x
x = 17,201.91/135.66 - Step 6: Final answer
x = 126.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.