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Finding the Fourth Proportional to 137,855.80, 206,819.70 and 44,363.80

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Solution

The fourth proportional to 137,855.80, 206,819.70 and 44,363.80 is: 66,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,855.80 : 206,819.70 = 44,363.80 : x
  2. Step 2: Convert to fraction form
    137,855.80/206,819.70 = 44,363.80/x
  3. Step 3: Cross multiply
    137,855.80x = 206,819.70 × 44,363.80
  4. Step 4: Simplify right side
    137,855.80x = 9,175,307,806.86
  5. Step 5: Solve for x
    x = 9,175,307,806.86/137,855.80
  6. Step 6: Final answer
    x = 66,557.29

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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.