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Finding the Fourth Proportional to 133,677.20, 200,515.80 and 124,819.85

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Solution

The fourth proportional to 133,677.20, 200,515.80 and 124,819.85 is: 187,229.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,677.20 : 200,515.80 = 124,819.85 : x
  2. Step 2: Convert to fraction form
    133,677.20/200,515.80 = 124,819.85/x
  3. Step 3: Cross multiply
    133,677.20x = 200,515.80 × 124,819.85
  4. Step 4: Simplify right side
    133,677.20x = 25,028,352,078.63
  5. Step 5: Solve for x
    x = 25,028,352,078.63/133,677.20
  6. Step 6: Final answer
    x = 187,229.78

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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.