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Finding the Fourth Proportional to 99,399.81, 149,099.02 and 40,234.62

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Solution

The fourth proportional to 99,399.81, 149,099.02 and 40,234.62 is: 60,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,399.81 : 149,099.02 = 40,234.62 : x
  2. Step 2: Convert to fraction form
    99,399.81/149,099.02 = 40,234.62/x
  3. Step 3: Cross multiply
    99,399.81x = 149,099.02 × 40,234.62
  4. Step 4: Simplify right side
    99,399.81x = 5,998,942,311.49
  5. Step 5: Solve for x
    x = 5,998,942,311.49/99,399.81
  6. Step 6: Final answer
    x = 60,351.65

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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.