Finding the Fourth Proportional to 97.92, 134.98 and 84.68
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Solution
The fourth proportional to 97.92, 134.98 and 84.68 is: 116.73
Step by Step Solution
- Step 1: Write the proportion equation
97.92 : 134.98 = 84.68 : x - Step 2: Convert to fraction form
97.92/134.98 = 84.68/x - Step 3: Cross multiply
97.92x = 134.98 × 84.68 - Step 4: Simplify right side
97.92x = 11,430.11 - Step 5: Solve for x
x = 11,430.11/97.92 - Step 6: Final answer
x = 116.73
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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.