Home / 139,202.42-192,099.87-75,540.20

Finding the Fourth Proportional to 139,202.42, 192,099.87 and 75,540.20

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Solution

The fourth proportional to 139,202.42, 192,099.87 and 75,540.20 is: 104,245.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,202.42 : 192,099.87 = 75,540.20 : x
  2. Step 2: Convert to fraction form
    139,202.42/192,099.87 = 75,540.20/x
  3. Step 3: Cross multiply
    139,202.42x = 192,099.87 × 75,540.20
  4. Step 4: Simplify right side
    139,202.42x = 14,511,261,639.27
  5. Step 5: Solve for x
    x = 14,511,261,639.27/139,202.42
  6. Step 6: Final answer
    x = 104,245.76

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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.