Home / 141,821.62-195,717.93-78,163.52

Finding the Fourth Proportional to 141,821.62, 195,717.93 and 78,163.52

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Solution

The fourth proportional to 141,821.62, 195,717.93 and 78,163.52 is: 107,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,821.62 : 195,717.93 = 78,163.52 : x
  2. Step 2: Convert to fraction form
    141,821.62/195,717.93 = 78,163.52/x
  3. Step 3: Cross multiply
    141,821.62x = 195,717.93 × 78,163.52
  4. Step 4: Simplify right side
    141,821.62x = 15,298,002,335.91
  5. Step 5: Solve for x
    x = 15,298,002,335.91/141,821.62
  6. Step 6: Final answer
    x = 107,867.91

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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.