Home / 132,780.20-199,170.30-83,628.20

Finding the Fourth Proportional to 132,780.20, 199,170.30 and 83,628.20

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Solution

The fourth proportional to 132,780.20, 199,170.30 and 83,628.20 is: 125,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,780.20 : 199,170.30 = 83,628.20 : x
  2. Step 2: Convert to fraction form
    132,780.20/199,170.30 = 83,628.20/x
  3. Step 3: Cross multiply
    132,780.20x = 199,170.30 × 83,628.20
  4. Step 4: Simplify right side
    132,780.20x = 16,656,253,682.46
  5. Step 5: Solve for x
    x = 16,656,253,682.46/132,780.20
  6. Step 6: Final answer
    x = 125,442.30

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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.