Home / 130,033.20-195,049.80-80,881.20

Finding the Fourth Proportional to 130,033.20, 195,049.80 and 80,881.20

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Solution

The fourth proportional to 130,033.20, 195,049.80 and 80,881.20 is: 121,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,033.20 : 195,049.80 = 80,881.20 : x
  2. Step 2: Convert to fraction form
    130,033.20/195,049.80 = 80,881.20/x
  3. Step 3: Cross multiply
    130,033.20x = 195,049.80 × 80,881.20
  4. Step 4: Simplify right side
    130,033.20x = 15,775,861,883.76
  5. Step 5: Solve for x
    x = 15,775,861,883.76/130,033.20
  6. Step 6: Final answer
    x = 121,321.80

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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.