Home / 129,167.65-193,778.07-54,243.73

Finding the Fourth Proportional to 129,167.65, 193,778.07 and 54,243.73

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Solution

The fourth proportional to 129,167.65, 193,778.07 and 54,243.73 is: 81,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,167.65 : 193,778.07 = 54,243.73 : x
  2. Step 2: Convert to fraction form
    129,167.65/193,778.07 = 54,243.73/x
  3. Step 3: Cross multiply
    129,167.65x = 193,778.07 × 54,243.73
  4. Step 4: Simplify right side
    129,167.65x = 10,511,245,309.00
  5. Step 5: Solve for x
    x = 10,511,245,309.00/129,167.65
  6. Step 6: Final answer
    x = 81,376.76

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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.