Home / 139,180.56-192,063.92-75,517.04

Finding the Fourth Proportional to 139,180.56, 192,063.92 and 75,517.04

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Solution

The fourth proportional to 139,180.56, 192,063.92 and 75,517.04 is: 104,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,180.56 : 192,063.92 = 75,517.04 : x
  2. Step 2: Convert to fraction form
    139,180.56/192,063.92 = 75,517.04/x
  3. Step 3: Cross multiply
    139,180.56x = 192,063.92 × 75,517.04
  4. Step 4: Simplify right side
    139,180.56x = 14,504,098,729.20
  5. Step 5: Solve for x
    x = 14,504,098,729.20/139,180.56
  6. Step 6: Final answer
    x = 104,210.67

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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.