Home / 105,469.90-158,217.91-38,910.38

Finding the Fourth Proportional to 105,469.90, 158,217.91 and 38,910.38

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Solution

The fourth proportional to 105,469.90, 158,217.91 and 38,910.38 is: 58,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,469.90 : 158,217.91 = 38,910.38 : x
  2. Step 2: Convert to fraction form
    105,469.90/158,217.91 = 38,910.38/x
  3. Step 3: Cross multiply
    105,469.90x = 158,217.91 × 38,910.38
  4. Step 4: Simplify right side
    105,469.90x = 6,156,318,112.54
  5. Step 5: Solve for x
    x = 6,156,318,112.54/105,469.90
  6. Step 6: Final answer
    x = 58,370.38

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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.