Home / 121,502.20-182,253.30-68,358.10

Finding the Fourth Proportional to 121,502.20, 182,253.30 and 68,358.10

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Solution

The fourth proportional to 121,502.20, 182,253.30 and 68,358.10 is: 102,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,502.20 : 182,253.30 = 68,358.10 : x
  2. Step 2: Convert to fraction form
    121,502.20/182,253.30 = 68,358.10/x
  3. Step 3: Cross multiply
    121,502.20x = 182,253.30 × 68,358.10
  4. Step 4: Simplify right side
    121,502.20x = 12,458,489,306.73
  5. Step 5: Solve for x
    x = 12,458,489,306.73/121,502.20
  6. Step 6: Final answer
    x = 102,537.15

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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.