Home / 131,620.20-197,138.70-108,292.20

Finding the Fourth Proportional to 131,620.20, 197,138.70 and 108,292.20

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Solution

The fourth proportional to 131,620.20, 197,138.70 and 108,292.20 is: 162,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,620.20 : 197,138.70 = 108,292.20 : x
  2. Step 2: Convert to fraction form
    131,620.20/197,138.70 = 108,292.20/x
  3. Step 3: Cross multiply
    131,620.20x = 197,138.70 × 108,292.20
  4. Step 4: Simplify right side
    131,620.20x = 21,348,583,528.14
  5. Step 5: Solve for x
    x = 21,348,583,528.14/131,620.20
  6. Step 6: Final answer
    x = 162,198.38

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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.