Home / 132,578.20-198,867.30-82,811.80

Finding the Fourth Proportional to 132,578.20, 198,867.30 and 82,811.80

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Solution

The fourth proportional to 132,578.20, 198,867.30 and 82,811.80 is: 124,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,578.20 : 198,867.30 = 82,811.80 : x
  2. Step 2: Convert to fraction form
    132,578.20/198,867.30 = 82,811.80/x
  3. Step 3: Cross multiply
    132,578.20x = 198,867.30 × 82,811.80
  4. Step 4: Simplify right side
    132,578.20x = 16,468,559,074.14
  5. Step 5: Solve for x
    x = 16,468,559,074.14/132,578.20
  6. Step 6: Final answer
    x = 124,217.70

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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.