Home / 138,753.05-208,002-49,984.85

Finding the Fourth Proportional to 138,753.05, 208,002 and 49,984.85

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Solution

The fourth proportional to 138,753.05, 208,002 and 49,984.85 is: 74,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,753.05 : 208,002 = 49,984.85 : x
  2. Step 2: Convert to fraction form
    138,753.05/208,002 = 49,984.85/x
  3. Step 3: Cross multiply
    138,753.05x = 208,002 × 49,984.85
  4. Step 4: Simplify right side
    138,753.05x = 10,396,947,729.69
  5. Step 5: Solve for x
    x = 10,396,947,729.69/138,753.05
  6. Step 6: Final answer
    x = 74,931.31

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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.