Home / 83,587.62-125,578.26-68,103.66

Finding the Fourth Proportional to 83,587.62, 125,578.26 and 68,103.66

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Solution

The fourth proportional to 83,587.62, 125,578.26 and 68,103.66 is: 102,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,587.62 : 125,578.26 = 68,103.66 : x
  2. Step 2: Convert to fraction form
    83,587.62/125,578.26 = 68,103.66/x
  3. Step 3: Cross multiply
    83,587.62x = 125,578.26 × 68,103.66
  4. Step 4: Simplify right side
    83,587.62x = 8,552,339,122.43
  5. Step 5: Solve for x
    x = 8,552,339,122.43/83,587.62
  6. Step 6: Final answer
    x = 102,315.86

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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.