Home / 138,028.24-207,086.08-49,279.76

Finding the Fourth Proportional to 138,028.24, 207,086.08 and 49,279.76

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Solution

The fourth proportional to 138,028.24, 207,086.08 and 49,279.76 is: 73,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,028.24 : 207,086.08 = 49,279.76 : x
  2. Step 2: Convert to fraction form
    138,028.24/207,086.08 = 49,279.76/x
  3. Step 3: Cross multiply
    138,028.24x = 207,086.08 × 49,279.76
  4. Step 4: Simplify right side
    138,028.24x = 10,205,152,321.74
  5. Step 5: Solve for x
    x = 10,205,152,321.74/138,028.24
  6. Step 6: Final answer
    x = 73,935.25

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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.