Home / 133,040.30-199,560.45-80,422.70

Finding the Fourth Proportional to 133,040.30, 199,560.45 and 80,422.70

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Solution

The fourth proportional to 133,040.30, 199,560.45 and 80,422.70 is: 120,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,040.30 : 199,560.45 = 80,422.70 : x
  2. Step 2: Convert to fraction form
    133,040.30/199,560.45 = 80,422.70/x
  3. Step 3: Cross multiply
    133,040.30x = 199,560.45 × 80,422.70
  4. Step 4: Simplify right side
    133,040.30x = 16,049,190,202.22
  5. Step 5: Solve for x
    x = 16,049,190,202.22/133,040.30
  6. Step 6: Final answer
    x = 120,634.05

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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.