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Finding the Fourth Proportional to 178,159.68, 267,239.52 and 72,959.52

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Solution

The fourth proportional to 178,159.68, 267,239.52 and 72,959.52 is: 109,439.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,159.68 : 267,239.52 = 72,959.52 : x
  2. Step 2: Convert to fraction form
    178,159.68/267,239.52 = 72,959.52/x
  3. Step 3: Cross multiply
    178,159.68x = 267,239.52 × 72,959.52
  4. Step 4: Simplify right side
    178,159.68x = 19,497,667,104.23
  5. Step 5: Solve for x
    x = 19,497,667,104.23/178,159.68
  6. Step 6: Final answer
    x = 109,439.28

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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.