Home / 199,208.20-298,982.40-80,964.40

Finding the Fourth Proportional to 199,208.20, 298,982.40 and 80,964.40

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Solution

The fourth proportional to 199,208.20, 298,982.40 and 80,964.40 is: 121,515.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,208.20 : 298,982.40 = 80,964.40 : x
  2. Step 2: Convert to fraction form
    199,208.20/298,982.40 = 80,964.40/x
  3. Step 3: Cross multiply
    199,208.20x = 298,982.40 × 80,964.40
  4. Step 4: Simplify right side
    199,208.20x = 24,206,930,626.56
  5. Step 5: Solve for x
    x = 24,206,930,626.56/199,208.20
  6. Step 6: Final answer
    x = 121,515.73

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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.