Home / 131,449.20-197,319.60-101,997.60

Finding the Fourth Proportional to 131,449.20, 197,319.60 and 101,997.60

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Solution

The fourth proportional to 131,449.20, 197,319.60 and 101,997.60 is: 153,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,449.20 : 197,319.60 = 101,997.60 : x
  2. Step 2: Convert to fraction form
    131,449.20/197,319.60 = 101,997.60/x
  3. Step 3: Cross multiply
    131,449.20x = 197,319.60 × 101,997.60
  4. Step 4: Simplify right side
    131,449.20x = 20,126,125,632.96
  5. Step 5: Solve for x
    x = 20,126,125,632.96/131,449.20
  6. Step 6: Final answer
    x = 153,109.53

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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.