Home / 139,660.32-192,731.88-75,997.68

Finding the Fourth Proportional to 139,660.32, 192,731.88 and 75,997.68

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Solution

The fourth proportional to 139,660.32, 192,731.88 and 75,997.68 is: 104,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,660.32 : 192,731.88 = 75,997.68 : x
  2. Step 2: Convert to fraction form
    139,660.32/192,731.88 = 75,997.68/x
  3. Step 3: Cross multiply
    139,660.32x = 192,731.88 × 75,997.68
  4. Step 4: Simplify right side
    139,660.32x = 14,647,175,742.04
  5. Step 5: Solve for x
    x = 14,647,175,742.04/139,660.32
  6. Step 6: Final answer
    x = 104,877.15

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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.