Home / 129,639.88-194,453.10-50,768.56

Finding the Fourth Proportional to 129,639.88, 194,453.10 and 50,768.56

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Solution

The fourth proportional to 129,639.88, 194,453.10 and 50,768.56 is: 76,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,639.88 : 194,453.10 = 50,768.56 : x
  2. Step 2: Convert to fraction form
    129,639.88/194,453.10 = 50,768.56/x
  3. Step 3: Cross multiply
    129,639.88x = 194,453.10 × 50,768.56
  4. Step 4: Simplify right side
    129,639.88x = 9,872,103,874.54
  5. Step 5: Solve for x
    x = 9,872,103,874.54/129,639.88
  6. Step 6: Final answer
    x = 76,150.21

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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.