Home / 138,854.91-208,239.30-50,096.88

Finding the Fourth Proportional to 138,854.91, 208,239.30 and 50,096.88

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Solution

The fourth proportional to 138,854.91, 208,239.30 and 50,096.88 is: 75,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,854.91 : 208,239.30 = 50,096.88 : x
  2. Step 2: Convert to fraction form
    138,854.91/208,239.30 = 50,096.88/x
  3. Step 3: Cross multiply
    138,854.91x = 208,239.30 × 50,096.88
  4. Step 4: Simplify right side
    138,854.91x = 10,432,139,223.38
  5. Step 5: Solve for x
    x = 10,432,139,223.38/138,854.91
  6. Step 6: Final answer
    x = 75,129.78

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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.