Home / 128,319.97-192,480.05-34,825.72

Finding the Fourth Proportional to 128,319.97, 192,480.05 and 34,825.72

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Solution

The fourth proportional to 128,319.97, 192,480.05 and 34,825.72 is: 52,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,319.97 : 192,480.05 = 34,825.72 : x
  2. Step 2: Convert to fraction form
    128,319.97/192,480.05 = 34,825.72/x
  3. Step 3: Cross multiply
    128,319.97x = 192,480.05 × 34,825.72
  4. Step 4: Simplify right side
    128,319.97x = 6,703,256,326.89
  5. Step 5: Solve for x
    x = 6,703,256,326.89/128,319.97
  6. Step 6: Final answer
    x = 52,238.61

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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.