Finding the Fourth Proportional to 97.59, 134.79 and 91.50
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Solution
The fourth proportional to 97.59, 134.79 and 91.50 is: 126.38
Step by Step Solution
- Step 1: Write the proportion equation
97.59 : 134.79 = 91.50 : x - Step 2: Convert to fraction form
97.59/134.79 = 91.50/x - Step 3: Cross multiply
97.59x = 134.79 × 91.50 - Step 4: Simplify right side
97.59x = 12,333.29 - Step 5: Solve for x
x = 12,333.29/97.59 - Step 6: Final answer
x = 126.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.