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Finding the Fourth Proportional to 178,639.80, 267,959.70 and 73,534.20

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Solution

The fourth proportional to 178,639.80, 267,959.70 and 73,534.20 is: 110,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,639.80 : 267,959.70 = 73,534.20 : x
  2. Step 2: Convert to fraction form
    178,639.80/267,959.70 = 73,534.20/x
  3. Step 3: Cross multiply
    178,639.80x = 267,959.70 × 73,534.20
  4. Step 4: Simplify right side
    178,639.80x = 19,704,202,171.74
  5. Step 5: Solve for x
    x = 19,704,202,171.74/178,639.80
  6. Step 6: Final answer
    x = 110,301.30

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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.