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Finding the Fourth Proportional to 169,310.60, 254,073.90 and 80,664.20

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Solution

The fourth proportional to 169,310.60, 254,073.90 and 80,664.20 is: 121,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,310.60 : 254,073.90 = 80,664.20 : x
  2. Step 2: Convert to fraction form
    169,310.60/254,073.90 = 80,664.20/x
  3. Step 3: Cross multiply
    169,310.60x = 254,073.90 × 80,664.20
  4. Step 4: Simplify right side
    169,310.60x = 20,494,667,884.38
  5. Step 5: Solve for x
    x = 20,494,667,884.38/169,310.60
  6. Step 6: Final answer
    x = 121,047.75

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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.