Home / 139,180.20-192,069.21-75,517.95

Finding the Fourth Proportional to 139,180.20, 192,069.21 and 75,517.95

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Solution

The fourth proportional to 139,180.20, 192,069.21 and 75,517.95 is: 104,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,180.20 : 192,069.21 = 75,517.95 : x
  2. Step 2: Convert to fraction form
    139,180.20/192,069.21 = 75,517.95/x
  3. Step 3: Cross multiply
    139,180.20x = 192,069.21 × 75,517.95
  4. Step 4: Simplify right side
    139,180.20x = 14,504,672,997.32
  5. Step 5: Solve for x
    x = 14,504,672,997.32/139,180.20
  6. Step 6: Final answer
    x = 104,215.06

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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.