Home / 99,456.75-137,153.07-63,633.69

Finding the Fourth Proportional to 99,456.75, 137,153.07 and 63,633.69

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Solution

The fourth proportional to 99,456.75, 137,153.07 and 63,633.69 is: 87,752.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,456.75 : 137,153.07 = 63,633.69 : x
  2. Step 2: Convert to fraction form
    99,456.75/137,153.07 = 63,633.69/x
  3. Step 3: Cross multiply
    99,456.75x = 137,153.07 × 63,633.69
  4. Step 4: Simplify right side
    99,456.75x = 8,727,555,938.93
  5. Step 5: Solve for x
    x = 8,727,555,938.93/99,456.75
  6. Step 6: Final answer
    x = 87,752.27

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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.