Home / 99,645.72-137,433.24-63,839.13

Finding the Fourth Proportional to 99,645.72, 137,433.24 and 63,839.13

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Solution

The fourth proportional to 99,645.72, 137,433.24 and 63,839.13 is: 88,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645.72 : 137,433.24 = 63,839.13 : x
  2. Step 2: Convert to fraction form
    99,645.72/137,433.24 = 63,839.13/x
  3. Step 3: Cross multiply
    99,645.72x = 137,433.24 × 63,839.13
  4. Step 4: Simplify right side
    99,645.72x = 8,773,618,474.68
  5. Step 5: Solve for x
    x = 8,773,618,474.68/99,645.72
  6. Step 6: Final answer
    x = 88,048.12

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1.5x scale

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.