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Finding the Fourth Proportional to 178,156.40, 267,234.42 and 72,975.56

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Solution

The fourth proportional to 178,156.40, 267,234.42 and 72,975.56 is: 109,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,156.40 : 267,234.42 = 72,975.56 : x
  2. Step 2: Convert to fraction form
    178,156.40/267,234.42 = 72,975.56/x
  3. Step 3: Cross multiply
    178,156.40x = 267,234.42 × 72,975.56
  4. Step 4: Simplify right side
    178,156.40x = 19,501,581,450.78
  5. Step 5: Solve for x
    x = 19,501,581,450.78/178,156.40
  6. Step 6: Final answer
    x = 109,463.27

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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.