Home / 103,410.20-155,115.30-44,251.85

Finding the Fourth Proportional to 103,410.20, 155,115.30 and 44,251.85

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Solution

The fourth proportional to 103,410.20, 155,115.30 and 44,251.85 is: 66,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,410.20 : 155,115.30 = 44,251.85 : x
  2. Step 2: Convert to fraction form
    103,410.20/155,115.30 = 44,251.85/x
  3. Step 3: Cross multiply
    103,410.20x = 155,115.30 × 44,251.85
  4. Step 4: Simplify right side
    103,410.20x = 6,864,138,988.31
  5. Step 5: Solve for x
    x = 6,864,138,988.31/103,410.20
  6. Step 6: Final answer
    x = 66,377.78

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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.