Finding the Fourth Proportional to 88,690.10, 133,035.15 and 87,523.70
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Solution
The fourth proportional to 88,690.10, 133,035.15 and 87,523.70 is: 131,285.55
Step by Step Solution
- Step 1: Write the proportion equation
88,690.10 : 133,035.15 = 87,523.70 : x - Step 2: Convert to fraction form
88,690.10/133,035.15 = 87,523.70/x - Step 3: Cross multiply
88,690.10x = 133,035.15 × 87,523.70 - Step 4: Simplify right side
88,690.10x = 11,643,728,558.06 - Step 5: Solve for x
x = 11,643,728,558.06/88,690.10 - Step 6: Final answer
x = 131,285.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.