Home / 138,780.39-208,174.56-44,011.02

Finding the Fourth Proportional to 138,780.39, 208,174.56 and 44,011.02

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Solution

The fourth proportional to 138,780.39, 208,174.56 and 44,011.02 is: 66,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,780.39 : 208,174.56 = 44,011.02 : x
  2. Step 2: Convert to fraction form
    138,780.39/208,174.56 = 44,011.02/x
  3. Step 3: Cross multiply
    138,780.39x = 208,174.56 × 44,011.02
  4. Step 4: Simplify right side
    138,780.39x = 9,161,974,723.65
  5. Step 5: Solve for x
    x = 9,161,974,723.65/138,780.39
  6. Step 6: Final answer
    x = 66,017.79

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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.