Home / 82,764.62-124,073.10-68,838.90

Finding the Fourth Proportional to 82,764.62, 124,073.10 and 68,838.90

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Solution

The fourth proportional to 82,764.62, 124,073.10 and 68,838.90 is: 103,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,764.62 : 124,073.10 = 68,838.90 : x
  2. Step 2: Convert to fraction form
    82,764.62/124,073.10 = 68,838.90/x
  3. Step 3: Cross multiply
    82,764.62x = 124,073.10 × 68,838.90
  4. Step 4: Simplify right side
    82,764.62x = 8,541,055,723.59
  5. Step 5: Solve for x
    x = 8,541,055,723.59/82,764.62
  6. Step 6: Final answer
    x = 103,196.94

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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.