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Finding the Fourth Proportional to 276,103.52, 414,155.29 and 89,142.56

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Solution

The fourth proportional to 276,103.52, 414,155.29 and 89,142.56 is: 133,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,103.52 : 414,155.29 = 89,142.56 : x
  2. Step 2: Convert to fraction form
    276,103.52/414,155.29 = 89,142.56/x
  3. Step 3: Cross multiply
    276,103.52x = 414,155.29 × 89,142.56
  4. Step 4: Simplify right side
    276,103.52x = 36,918,862,788.14
  5. Step 5: Solve for x
    x = 36,918,862,788.14/276,103.52
  6. Step 6: Final answer
    x = 133,713.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.