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Finding the Fourth Proportional to 169,690.72, 254,591.44 and 80,932.69

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Solution

The fourth proportional to 169,690.72, 254,591.44 and 80,932.69 is: 121,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,690.72 : 254,591.44 = 80,932.69 : x
  2. Step 2: Convert to fraction form
    169,690.72/254,591.44 = 80,932.69/x
  3. Step 3: Cross multiply
    169,690.72x = 254,591.44 × 80,932.69
  4. Step 4: Simplify right side
    169,690.72x = 20,604,770,090.17
  5. Step 5: Solve for x
    x = 20,604,770,090.17/169,690.72
  6. Step 6: Final answer
    x = 121,425.44

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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.