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Finding the Fourth Proportional to 178,019.20, 267,201.60 and 89,372.80

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Solution

The fourth proportional to 178,019.20, 267,201.60 and 89,372.80 is: 134,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,019.20 : 267,201.60 = 89,372.80 : x
  2. Step 2: Convert to fraction form
    178,019.20/267,201.60 = 89,372.80/x
  3. Step 3: Cross multiply
    178,019.20x = 267,201.60 × 89,372.80
  4. Step 4: Simplify right side
    178,019.20x = 23,880,555,156.48
  5. Step 5: Solve for x
    x = 23,880,555,156.48/178,019.20
  6. Step 6: Final answer
    x = 134,145.95

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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.