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Finding the Fourth Proportional to 178,366.52, 267,551.39 and 77,145.68

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Solution

The fourth proportional to 178,366.52, 267,551.39 and 77,145.68 is: 115,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,366.52 : 267,551.39 = 77,145.68 : x
  2. Step 2: Convert to fraction form
    178,366.52/267,551.39 = 77,145.68/x
  3. Step 3: Cross multiply
    178,366.52x = 267,551.39 × 77,145.68
  4. Step 4: Simplify right side
    178,366.52x = 20,640,432,771.60
  5. Step 5: Solve for x
    x = 20,640,432,771.60/178,366.52
  6. Step 6: Final answer
    x = 115,719.21

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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.