Home / 99,515.88-137,287.56-67,240.14

Finding the Fourth Proportional to 99,515.88, 137,287.56 and 67,240.14

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Solution

The fourth proportional to 99,515.88, 137,287.56 and 67,240.14 is: 92,761.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.88 : 137,287.56 = 67,240.14 : x
  2. Step 2: Convert to fraction form
    99,515.88/137,287.56 = 67,240.14/x
  3. Step 3: Cross multiply
    99,515.88x = 137,287.56 × 67,240.14
  4. Step 4: Simplify right side
    99,515.88x = 9,231,234,754.66
  5. Step 5: Solve for x
    x = 9,231,234,754.66/99,515.88
  6. Step 6: Final answer
    x = 92,761.42

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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.