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Finding the Fourth Proportional to 178,107.12, 267,160.68 and 79,542

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Solution

The fourth proportional to 178,107.12, 267,160.68 and 79,542 is: 119,313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,107.12 : 267,160.68 = 79,542 : x
  2. Step 2: Convert to fraction form
    178,107.12/267,160.68 = 79,542/x
  3. Step 3: Cross multiply
    178,107.12x = 267,160.68 × 79,542
  4. Step 4: Simplify right side
    178,107.12x = 21,250,494,808.56
  5. Step 5: Solve for x
    x = 21,250,494,808.56/178,107.12
  6. Step 6: Final answer
    x = 119,313.00

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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.