Home / 129,972.96-194,969.76-50,049.60

Finding the Fourth Proportional to 129,972.96, 194,969.76 and 50,049.60

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Solution

The fourth proportional to 129,972.96, 194,969.76 and 50,049.60 is: 75,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,972.96 : 194,969.76 = 50,049.60 : x
  2. Step 2: Convert to fraction form
    129,972.96/194,969.76 = 50,049.60/x
  3. Step 3: Cross multiply
    129,972.96x = 194,969.76 × 50,049.60
  4. Step 4: Simplify right side
    129,972.96x = 9,758,158,500.10
  5. Step 5: Solve for x
    x = 9,758,158,500.10/129,972.96
  6. Step 6: Final answer
    x = 75,078.37

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1.5x scale

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.