Home / 87,456.05-131,183.63-75,573.72

Finding the Fourth Proportional to 87,456.05, 131,183.63 and 75,573.72

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Solution

The fourth proportional to 87,456.05, 131,183.63 and 75,573.72 is: 113,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,456.05 : 131,183.63 = 75,573.72 : x
  2. Step 2: Convert to fraction form
    87,456.05/131,183.63 = 75,573.72/x
  3. Step 3: Cross multiply
    87,456.05x = 131,183.63 × 75,573.72
  4. Step 4: Simplify right side
    87,456.05x = 9,914,034,827.74
  5. Step 5: Solve for x
    x = 9,914,034,827.74/87,456.05
  6. Step 6: Final answer
    x = 113,360.20

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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.