Home / 87,132.92-130,109.18-69,161.95

Finding the Fourth Proportional to 87,132.92, 130,109.18 and 69,161.95

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Solution

The fourth proportional to 87,132.92, 130,109.18 and 69,161.95 is: 103,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,132.92 : 130,109.18 = 69,161.95 : x
  2. Step 2: Convert to fraction form
    87,132.92/130,109.18 = 69,161.95/x
  3. Step 3: Cross multiply
    87,132.92x = 130,109.18 × 69,161.95
  4. Step 4: Simplify right side
    87,132.92x = 8,998,604,601.70
  5. Step 5: Solve for x
    x = 8,998,604,601.70/87,132.92
  6. Step 6: Final answer
    x = 103,274.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.