Home / 172,278.97-258,397.89-45,928.69

Finding the Fourth Proportional to 172,278.97, 258,397.89 and 45,928.69

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Solution

The fourth proportional to 172,278.97, 258,397.89 and 45,928.69 is: 68,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,278.97 : 258,397.89 = 45,928.69 : x
  2. Step 2: Convert to fraction form
    172,278.97/258,397.89 = 45,928.69/x
  3. Step 3: Cross multiply
    172,278.97x = 258,397.89 × 45,928.69
  4. Step 4: Simplify right side
    172,278.97x = 11,867,876,586.46
  5. Step 5: Solve for x
    x = 11,867,876,586.46/172,278.97
  6. Step 6: Final answer
    x = 68,887.55

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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.