Home / 99,542.46-137,366.20-57,098.18

Finding the Fourth Proportional to 99,542.46, 137,366.20 and 57,098.18

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Solution

The fourth proportional to 99,542.46, 137,366.20 and 57,098.18 is: 78,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,542.46 : 137,366.20 = 57,098.18 : x
  2. Step 2: Convert to fraction form
    99,542.46/137,366.20 = 57,098.18/x
  3. Step 3: Cross multiply
    99,542.46x = 137,366.20 × 57,098.18
  4. Step 4: Simplify right side
    99,542.46x = 7,843,360,013.52
  5. Step 5: Solve for x
    x = 7,843,360,013.52/99,542.46
  6. Step 6: Final answer
    x = 78,794.11

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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.