Home / 120,937.11-181,358.98-39,864.66

Finding the Fourth Proportional to 120,937.11, 181,358.98 and 39,864.66

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Solution

The fourth proportional to 120,937.11, 181,358.98 and 39,864.66 is: 59,781.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,937.11 : 181,358.98 = 39,864.66 : x
  2. Step 2: Convert to fraction form
    120,937.11/181,358.98 = 39,864.66/x
  3. Step 3: Cross multiply
    120,937.11x = 181,358.98 × 39,864.66
  4. Step 4: Simplify right side
    120,937.11x = 7,229,814,540.27
  5. Step 5: Solve for x
    x = 7,229,814,540.27/120,937.11
  6. Step 6: Final answer
    x = 59,781.61

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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.