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Finding the Fourth Proportional to 138,149.06, 207,223.60 and 44,654.81

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Solution

The fourth proportional to 138,149.06, 207,223.60 and 44,654.81 is: 66,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,149.06 : 207,223.60 = 44,654.81 : x
  2. Step 2: Convert to fraction form
    138,149.06/207,223.60 = 44,654.81/x
  3. Step 3: Cross multiply
    138,149.06x = 207,223.60 × 44,654.81
  4. Step 4: Simplify right side
    138,149.06x = 9,253,530,780.30
  5. Step 5: Solve for x
    x = 9,253,530,780.30/138,149.06
  6. Step 6: Final answer
    x = 66,982.22

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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.