Finding the Fourth Proportional to 135.24, 202.92 and 87.24
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Solution
The fourth proportional to 135.24, 202.92 and 87.24 is: 130.90
Step by Step Solution
- Step 1: Write the proportion equation
135.24 : 202.92 = 87.24 : x - Step 2: Convert to fraction form
135.24/202.92 = 87.24/x - Step 3: Cross multiply
135.24x = 202.92 × 87.24 - Step 4: Simplify right side
135.24x = 17,702.74 - Step 5: Solve for x
x = 17,702.74/135.24 - Step 6: Final answer
x = 130.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.