Home / 239,408.11-359,194.18-81,747.28

Finding the Fourth Proportional to 239,408.11, 359,194.18 and 81,747.28

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Solution

The fourth proportional to 239,408.11, 359,194.18 and 81,747.28 is: 122,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,408.11 : 359,194.18 = 81,747.28 : x
  2. Step 2: Convert to fraction form
    239,408.11/359,194.18 = 81,747.28/x
  3. Step 3: Cross multiply
    239,408.11x = 359,194.18 × 81,747.28
  4. Step 4: Simplify right side
    239,408.11x = 29,363,147,206.83
  5. Step 5: Solve for x
    x = 29,363,147,206.83/239,408.11
  6. Step 6: Final answer
    x = 122,648.92

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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.