Home / 131,167.20-197,188.20-111,921.60

Finding the Fourth Proportional to 131,167.20, 197,188.20 and 111,921.60

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Solution

The fourth proportional to 131,167.20, 197,188.20 and 111,921.60 is: 168,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,167.20 : 197,188.20 = 111,921.60 : x
  2. Step 2: Convert to fraction form
    131,167.20/197,188.20 = 111,921.60/x
  3. Step 3: Cross multiply
    131,167.20x = 197,188.20 × 111,921.60
  4. Step 4: Simplify right side
    131,167.20x = 22,069,618,845.12
  5. Step 5: Solve for x
    x = 22,069,618,845.12/131,167.20
  6. Step 6: Final answer
    x = 168,255.62

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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.