Home / 96,387.20-144,580.80-86,545.70

Finding the Fourth Proportional to 96,387.20, 144,580.80 and 86,545.70

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Solution

The fourth proportional to 96,387.20, 144,580.80 and 86,545.70 is: 129,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,387.20 : 144,580.80 = 86,545.70 : x
  2. Step 2: Convert to fraction form
    96,387.20/144,580.80 = 86,545.70/x
  3. Step 3: Cross multiply
    96,387.20x = 144,580.80 × 86,545.70
  4. Step 4: Simplify right side
    96,387.20x = 12,512,846,542.56
  5. Step 5: Solve for x
    x = 12,512,846,542.56/96,387.20
  6. Step 6: Final answer
    x = 129,818.55

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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.