Finding the Fourth Proportional to 87,423.26, 131,201.86 and 67,652.78
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Solution
The fourth proportional to 87,423.26, 131,201.86 and 67,652.78 is: 101,530.99
Step by Step Solution
- Step 1: Write the proportion equation
87,423.26 : 131,201.86 = 67,652.78 : x - Step 2: Convert to fraction form
87,423.26/131,201.86 = 67,652.78/x - Step 3: Cross multiply
87,423.26x = 131,201.86 × 67,652.78 - Step 4: Simplify right side
87,423.26x = 8,876,170,570.17 - Step 5: Solve for x
x = 8,876,170,570.17/87,423.26 - Step 6: Final answer
x = 101,530.99
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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.