Home / 252,436.20-378,572.13-83,911.35

Finding the Fourth Proportional to 252,436.20, 378,572.13 and 83,911.35

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Solution

The fourth proportional to 252,436.20, 378,572.13 and 83,911.35 is: 125,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,436.20 : 378,572.13 = 83,911.35 : x
  2. Step 2: Convert to fraction form
    252,436.20/378,572.13 = 83,911.35/x
  3. Step 3: Cross multiply
    252,436.20x = 378,572.13 × 83,911.35
  4. Step 4: Simplify right side
    252,436.20x = 31,766,498,500.68
  5. Step 5: Solve for x
    x = 31,766,498,500.68/252,436.20
  6. Step 6: Final answer
    x = 125,839.71

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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.