Home / 133,080.20-199,620.30-91,089.80

Finding the Fourth Proportional to 133,080.20, 199,620.30 and 91,089.80

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Solution

The fourth proportional to 133,080.20, 199,620.30 and 91,089.80 is: 136,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,080.20 : 199,620.30 = 91,089.80 : x
  2. Step 2: Convert to fraction form
    133,080.20/199,620.30 = 91,089.80/x
  3. Step 3: Cross multiply
    133,080.20x = 199,620.30 × 91,089.80
  4. Step 4: Simplify right side
    133,080.20x = 18,183,373,202.94
  5. Step 5: Solve for x
    x = 18,183,373,202.94/133,080.20
  6. Step 6: Final answer
    x = 136,634.70

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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.