Home / 113,531.08-156,672.92-65,812.20

Finding the Fourth Proportional to 113,531.08, 156,672.92 and 65,812.20

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Solution

The fourth proportional to 113,531.08, 156,672.92 and 65,812.20 is: 90,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,531.08 : 156,672.92 = 65,812.20 : x
  2. Step 2: Convert to fraction form
    113,531.08/156,672.92 = 65,812.20/x
  3. Step 3: Cross multiply
    113,531.08x = 156,672.92 × 65,812.20
  4. Step 4: Simplify right side
    113,531.08x = 10,310,989,545.62
  5. Step 5: Solve for x
    x = 10,310,989,545.62/113,531.08
  6. Step 6: Final answer
    x = 90,820.85

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1.5x scale

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.