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Finding the Fourth Proportional to 178,086.72, 267,130.08 and 72,882.24

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Solution

The fourth proportional to 178,086.72, 267,130.08 and 72,882.24 is: 109,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,086.72 : 267,130.08 = 72,882.24 : x
  2. Step 2: Convert to fraction form
    178,086.72/267,130.08 = 72,882.24/x
  3. Step 3: Cross multiply
    178,086.72x = 267,130.08 × 72,882.24
  4. Step 4: Simplify right side
    178,086.72x = 19,469,038,601.78
  5. Step 5: Solve for x
    x = 19,469,038,601.78/178,086.72
  6. Step 6: Final answer
    x = 109,323.36

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1.5x scale

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.