Home / 99,727.20-137,583.36-63,910.62

Finding the Fourth Proportional to 99,727.20, 137,583.36 and 63,910.62

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Solution

The fourth proportional to 99,727.20, 137,583.36 and 63,910.62 is: 88,170.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727.20 : 137,583.36 = 63,910.62 : x
  2. Step 2: Convert to fraction form
    99,727.20/137,583.36 = 63,910.62/x
  3. Step 3: Cross multiply
    99,727.20x = 137,583.36 × 63,910.62
  4. Step 4: Simplify right side
    99,727.20x = 8,793,037,839.28
  5. Step 5: Solve for x
    x = 8,793,037,839.28/99,727.20
  6. Step 6: Final answer
    x = 88,170.91

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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.