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Finding the Fourth Proportional to 124,473.39, 171,747.48 and 79,134.75

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Solution

The fourth proportional to 124,473.39, 171,747.48 and 79,134.75 is: 109,189.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,473.39 : 171,747.48 = 79,134.75 : x
  2. Step 2: Convert to fraction form
    124,473.39/171,747.48 = 79,134.75/x
  3. Step 3: Cross multiply
    124,473.39x = 171,747.48 × 79,134.75
  4. Step 4: Simplify right side
    124,473.39x = 13,591,193,892.93
  5. Step 5: Solve for x
    x = 13,591,193,892.93/124,473.39
  6. Step 6: Final answer
    x = 109,189.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.