Home / 128,255.22-192,382.83-34,760.97

Finding the Fourth Proportional to 128,255.22, 192,382.83 and 34,760.97

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Solution

The fourth proportional to 128,255.22, 192,382.83 and 34,760.97 is: 52,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,255.22 : 192,382.83 = 34,760.97 : x
  2. Step 2: Convert to fraction form
    128,255.22/192,382.83 = 34,760.97/x
  3. Step 3: Cross multiply
    128,255.22x = 192,382.83 × 34,760.97
  4. Step 4: Simplify right side
    128,255.22x = 6,687,413,782.15
  5. Step 5: Solve for x
    x = 6,687,413,782.15/128,255.22
  6. Step 6: Final answer
    x = 52,141.46

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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.