Home / 99,589.53-137,425.10-57,147.15

Finding the Fourth Proportional to 99,589.53, 137,425.10 and 57,147.15

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Solution

The fourth proportional to 99,589.53, 137,425.10 and 57,147.15 is: 78,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,589.53 : 137,425.10 = 57,147.15 : x
  2. Step 2: Convert to fraction form
    99,589.53/137,425.10 = 57,147.15/x
  3. Step 3: Cross multiply
    99,589.53x = 137,425.10 × 57,147.15
  4. Step 4: Simplify right side
    99,589.53x = 7,853,452,517.73
  5. Step 5: Solve for x
    x = 7,853,452,517.73/99,589.53
  6. Step 6: Final answer
    x = 78,858.21

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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.