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Finding the Fourth Proportional to 137,609.80, 206,881.26 and 109,884.04

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Solution

The fourth proportional to 137,609.80, 206,881.26 and 109,884.04 is: 165,198.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,609.80 : 206,881.26 = 109,884.04 : x
  2. Step 2: Convert to fraction form
    137,609.80/206,881.26 = 109,884.04/x
  3. Step 3: Cross multiply
    137,609.80x = 206,881.26 × 109,884.04
  4. Step 4: Simplify right side
    137,609.80x = 22,732,948,649.09
  5. Step 5: Solve for x
    x = 22,732,948,649.09/137,609.80
  6. Step 6: Final answer
    x = 165,198.62

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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.