Home / 83,864.10-125,796.15-68,117.70

Finding the Fourth Proportional to 83,864.10, 125,796.15 and 68,117.70

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Solution

The fourth proportional to 83,864.10, 125,796.15 and 68,117.70 is: 102,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,864.10 : 125,796.15 = 68,117.70 : x
  2. Step 2: Convert to fraction form
    83,864.10/125,796.15 = 68,117.70/x
  3. Step 3: Cross multiply
    83,864.10x = 125,796.15 × 68,117.70
  4. Step 4: Simplify right side
    83,864.10x = 8,568,944,406.86
  5. Step 5: Solve for x
    x = 8,568,944,406.86/83,864.10
  6. Step 6: Final answer
    x = 102,176.55

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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.