Home / 135,766.87-187,553.72-108,508.05

Finding the Fourth Proportional to 135,766.87, 187,553.72 and 108,508.05

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Solution

The fourth proportional to 135,766.87, 187,553.72 and 108,508.05 is: 149,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,766.87 : 187,553.72 = 108,508.05 : x
  2. Step 2: Convert to fraction form
    135,766.87/187,553.72 = 108,508.05/x
  3. Step 3: Cross multiply
    135,766.87x = 187,553.72 × 108,508.05
  4. Step 4: Simplify right side
    135,766.87x = 20,351,087,884.91
  5. Step 5: Solve for x
    x = 20,351,087,884.91/135,766.87
  6. Step 6: Final answer
    x = 149,897.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.