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Finding the Fourth Proportional to 99,179.82, 148,794.92 and 45,910.20

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Solution

The fourth proportional to 99,179.82, 148,794.92 and 45,910.20 is: 68,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,179.82 : 148,794.92 = 45,910.20 : x
  2. Step 2: Convert to fraction form
    99,179.82/148,794.92 = 45,910.20/x
  3. Step 3: Cross multiply
    99,179.82x = 148,794.92 × 45,910.20
  4. Step 4: Simplify right side
    99,179.82x = 6,831,204,306.63
  5. Step 5: Solve for x
    x = 6,831,204,306.63/99,179.82
  6. Step 6: Final answer
    x = 68,876.96

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1.5x scale

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.