Home / 132,821.80-199,286.10-53,942.20

Finding the Fourth Proportional to 132,821.80, 199,286.10 and 53,942.20

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Solution

The fourth proportional to 132,821.80, 199,286.10 and 53,942.20 is: 80,934.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,821.80 : 199,286.10 = 53,942.20 : x
  2. Step 2: Convert to fraction form
    132,821.80/199,286.10 = 53,942.20/x
  3. Step 3: Cross multiply
    132,821.80x = 199,286.10 × 53,942.20
  4. Step 4: Simplify right side
    132,821.80x = 10,749,930,663.42
  5. Step 5: Solve for x
    x = 10,749,930,663.42/132,821.80
  6. Step 6: Final answer
    x = 80,934.99

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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.