Home / 99,489.40-149,234.10-40,294.60

Finding the Fourth Proportional to 99,489.40, 149,234.10 and 40,294.60

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Solution

The fourth proportional to 99,489.40, 149,234.10 and 40,294.60 is: 60,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,489.40 : 149,234.10 = 40,294.60 : x
  2. Step 2: Convert to fraction form
    99,489.40/149,234.10 = 40,294.60/x
  3. Step 3: Cross multiply
    99,489.40x = 149,234.10 × 40,294.60
  4. Step 4: Simplify right side
    99,489.40x = 6,013,328,365.86
  5. Step 5: Solve for x
    x = 6,013,328,365.86/99,489.40
  6. Step 6: Final answer
    x = 60,441.90

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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.