Home / 99,868.32-137,817.12-54,545.76

Finding the Fourth Proportional to 99,868.32, 137,817.12 and 54,545.76

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Solution

The fourth proportional to 99,868.32, 137,817.12 and 54,545.76 is: 75,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,868.32 : 137,817.12 = 54,545.76 : x
  2. Step 2: Convert to fraction form
    99,868.32/137,817.12 = 54,545.76/x
  3. Step 3: Cross multiply
    99,868.32x = 137,817.12 × 54,545.76
  4. Step 4: Simplify right side
    99,868.32x = 7,517,339,551.41
  5. Step 5: Solve for x
    x = 7,517,339,551.41/99,868.32
  6. Step 6: Final answer
    x = 75,272.51

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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.