Home / 99,650.20-137,517.71-63,860.97

Finding the Fourth Proportional to 99,650.20, 137,517.71 and 63,860.97

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Solution

The fourth proportional to 99,650.20, 137,517.71 and 63,860.97 is: 88,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,650.20 : 137,517.71 = 63,860.97 : x
  2. Step 2: Convert to fraction form
    99,650.20/137,517.71 = 63,860.97/x
  3. Step 3: Cross multiply
    99,650.20x = 137,517.71 × 63,860.97
  4. Step 4: Simplify right side
    99,650.20x = 8,782,014,013.91
  5. Step 5: Solve for x
    x = 8,782,014,013.91/99,650.20
  6. Step 6: Final answer
    x = 88,128.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.