Home / 154,664.80-231,997.20-131,336.80

Finding the Fourth Proportional to 154,664.80, 231,997.20 and 131,336.80

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Solution

The fourth proportional to 154,664.80, 231,997.20 and 131,336.80 is: 197,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,664.80 : 231,997.20 = 131,336.80 : x
  2. Step 2: Convert to fraction form
    154,664.80/231,997.20 = 131,336.80/x
  3. Step 3: Cross multiply
    154,664.80x = 231,997.20 × 131,336.80
  4. Step 4: Simplify right side
    154,664.80x = 30,469,769,856.96
  5. Step 5: Solve for x
    x = 30,469,769,856.96/154,664.80
  6. Step 6: Final answer
    x = 197,005.20

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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.