Home / 99,346.20-148,922.10-40,102.80

Finding the Fourth Proportional to 99,346.20, 148,922.10 and 40,102.80

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Solution

The fourth proportional to 99,346.20, 148,922.10 and 40,102.80 is: 60,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,346.20 : 148,922.10 = 40,102.80 : x
  2. Step 2: Convert to fraction form
    99,346.20/148,922.10 = 40,102.80/x
  3. Step 3: Cross multiply
    99,346.20x = 148,922.10 × 40,102.80
  4. Step 4: Simplify right side
    99,346.20x = 5,972,193,191.88
  5. Step 5: Solve for x
    x = 5,972,193,191.88/99,346.20
  6. Step 6: Final answer
    x = 60,114.96

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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.