Home / 138,395.42-207,593.32-38,555.90

Finding the Fourth Proportional to 138,395.42, 207,593.32 and 38,555.90

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Solution

The fourth proportional to 138,395.42, 207,593.32 and 38,555.90 is: 57,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,395.42 : 207,593.32 = 38,555.90 : x
  2. Step 2: Convert to fraction form
    138,395.42/207,593.32 = 38,555.90/x
  3. Step 3: Cross multiply
    138,395.42x = 207,593.32 × 38,555.90
  4. Step 4: Simplify right side
    138,395.42x = 8,003,947,286.59
  5. Step 5: Solve for x
    x = 8,003,947,286.59/138,395.42
  6. Step 6: Final answer
    x = 57,833.90

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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.