Home / 154,234.20-231,416.10-84,163.80

Finding the Fourth Proportional to 154,234.20, 231,416.10 and 84,163.80

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Solution

The fourth proportional to 154,234.20, 231,416.10 and 84,163.80 is: 126,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,234.20 : 231,416.10 = 84,163.80 : x
  2. Step 2: Convert to fraction form
    154,234.20/231,416.10 = 84,163.80/x
  3. Step 3: Cross multiply
    154,234.20x = 231,416.10 × 84,163.80
  4. Step 4: Simplify right side
    154,234.20x = 19,476,858,357.18
  5. Step 5: Solve for x
    x = 19,476,858,357.18/154,234.20
  6. Step 6: Final answer
    x = 126,281.06

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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.