Home / 131,454.20-197,181.30-108,126.20

Finding the Fourth Proportional to 131,454.20, 197,181.30 and 108,126.20

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Solution

The fourth proportional to 131,454.20, 197,181.30 and 108,126.20 is: 162,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,454.20 : 197,181.30 = 108,126.20 : x
  2. Step 2: Convert to fraction form
    131,454.20/197,181.30 = 108,126.20/x
  3. Step 3: Cross multiply
    131,454.20x = 197,181.30 × 108,126.20
  4. Step 4: Simplify right side
    131,454.20x = 21,320,464,680.06
  5. Step 5: Solve for x
    x = 21,320,464,680.06/131,454.20
  6. Step 6: Final answer
    x = 162,189.30

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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.