Home / 137,989.46-207,008.80-38,147.45

Finding the Fourth Proportional to 137,989.46, 207,008.80 and 38,147.45

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Solution

The fourth proportional to 137,989.46, 207,008.80 and 38,147.45 is: 57,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,989.46 : 207,008.80 = 38,147.45 : x
  2. Step 2: Convert to fraction form
    137,989.46/207,008.80 = 38,147.45/x
  3. Step 3: Cross multiply
    137,989.46x = 207,008.80 × 38,147.45
  4. Step 4: Simplify right side
    137,989.46x = 7,896,856,717.15
  5. Step 5: Solve for x
    x = 7,896,856,717.15/137,989.46
  6. Step 6: Final answer
    x = 57,227.97

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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.