Home / 122,408.28-168,920.58-68,691.92

Finding the Fourth Proportional to 122,408.28, 168,920.58 and 68,691.92

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Solution

The fourth proportional to 122,408.28, 168,920.58 and 68,691.92 is: 94,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,408.28 : 168,920.58 = 68,691.92 : x
  2. Step 2: Convert to fraction form
    122,408.28/168,920.58 = 68,691.92/x
  3. Step 3: Cross multiply
    122,408.28x = 168,920.58 × 68,691.92
  4. Step 4: Simplify right side
    122,408.28x = 11,603,478,123.11
  5. Step 5: Solve for x
    x = 11,603,478,123.11/122,408.28
  6. Step 6: Final answer
    x = 94,793.25

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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.