Home / 144,128.97-198,840.78-96,306.57

Finding the Fourth Proportional to 144,128.97, 198,840.78 and 96,306.57

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Solution

The fourth proportional to 144,128.97, 198,840.78 and 96,306.57 is: 132,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,128.97 : 198,840.78 = 96,306.57 : x
  2. Step 2: Convert to fraction form
    144,128.97/198,840.78 = 96,306.57/x
  3. Step 3: Cross multiply
    144,128.97x = 198,840.78 × 96,306.57
  4. Step 4: Simplify right side
    144,128.97x = 19,149,673,497.92
  5. Step 5: Solve for x
    x = 19,149,673,497.92/144,128.97
  6. Step 6: Final answer
    x = 132,864.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.