Home / 128,441.76-192,612.72-44,185.92

Finding the Fourth Proportional to 128,441.76, 192,612.72 and 44,185.92

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Solution

The fourth proportional to 128,441.76, 192,612.72 and 44,185.92 is: 66,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,441.76 : 192,612.72 = 44,185.92 : x
  2. Step 2: Convert to fraction form
    128,441.76/192,612.72 = 44,185.92/x
  3. Step 3: Cross multiply
    128,441.76x = 192,612.72 × 44,185.92
  4. Step 4: Simplify right side
    128,441.76x = 8,510,770,236.90
  5. Step 5: Solve for x
    x = 8,510,770,236.90/128,441.76
  6. Step 6: Final answer
    x = 66,261.71

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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.