Home / 89,227.28-123,278.28-75,938.96

Finding the Fourth Proportional to 89,227.28, 123,278.28 and 75,938.96

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Solution

The fourth proportional to 89,227.28, 123,278.28 and 75,938.96 is: 104,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,227.28 : 123,278.28 = 75,938.96 : x
  2. Step 2: Convert to fraction form
    89,227.28/123,278.28 = 75,938.96/x
  3. Step 3: Cross multiply
    89,227.28x = 123,278.28 × 75,938.96
  4. Step 4: Simplify right side
    89,227.28x = 9,361,624,373.79
  5. Step 5: Solve for x
    x = 9,361,624,373.79/89,227.28
  6. Step 6: Final answer
    x = 104,918.86

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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.