Home / 129,688.32-194,392.32-54,791.04

Finding the Fourth Proportional to 129,688.32, 194,392.32 and 54,791.04

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Solution

The fourth proportional to 129,688.32, 194,392.32 and 54,791.04 is: 82,127.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,688.32 : 194,392.32 = 54,791.04 : x
  2. Step 2: Convert to fraction form
    129,688.32/194,392.32 = 54,791.04/x
  3. Step 3: Cross multiply
    129,688.32x = 194,392.32 × 54,791.04
  4. Step 4: Simplify right side
    129,688.32x = 10,650,957,380.81
  5. Step 5: Solve for x
    x = 10,650,957,380.81/129,688.32
  6. Step 6: Final answer
    x = 82,127.34

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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.