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Finding the Fourth Proportional to 169,949, 254,923.50 and 80,932.64

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Solution

The fourth proportional to 169,949, 254,923.50 and 80,932.64 is: 121,398.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,949 : 254,923.50 = 80,932.64 : x
  2. Step 2: Convert to fraction form
    169,949/254,923.50 = 80,932.64/x
  3. Step 3: Cross multiply
    169,949x = 254,923.50 × 80,932.64
  4. Step 4: Simplify right side
    169,949x = 20,631,631,853.04
  5. Step 5: Solve for x
    x = 20,631,631,853.04/169,949
  6. Step 6: Final answer
    x = 121,398.96

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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.