Home / 120,732.20-181,227.90-68,244.20

Finding the Fourth Proportional to 120,732.20, 181,227.90 and 68,244.20

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Solution

The fourth proportional to 120,732.20, 181,227.90 and 68,244.20 is: 102,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,732.20 : 181,227.90 = 68,244.20 : x
  2. Step 2: Convert to fraction form
    120,732.20/181,227.90 = 68,244.20/x
  3. Step 3: Cross multiply
    120,732.20x = 181,227.90 × 68,244.20
  4. Step 4: Simplify right side
    120,732.20x = 12,367,753,053.18
  5. Step 5: Solve for x
    x = 12,367,753,053.18/120,732.20
  6. Step 6: Final answer
    x = 102,439.56

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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.