Home / 172,104.20-258,257.82-72,281.96

Finding the Fourth Proportional to 172,104.20, 258,257.82 and 72,281.96

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Solution

The fourth proportional to 172,104.20, 258,257.82 and 72,281.96 is: 108,465.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,104.20 : 258,257.82 = 72,281.96 : x
  2. Step 2: Convert to fraction form
    172,104.20/258,257.82 = 72,281.96/x
  3. Step 3: Cross multiply
    172,104.20x = 258,257.82 × 72,281.96
  4. Step 4: Simplify right side
    172,104.20x = 18,667,381,414.93
  5. Step 5: Solve for x
    x = 18,667,381,414.93/172,104.20
  6. Step 6: Final answer
    x = 108,465.58

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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.