Home / 141,929.92-195,859.65-78,263.56

Finding the Fourth Proportional to 141,929.92, 195,859.65 and 78,263.56

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Solution

The fourth proportional to 141,929.92, 195,859.65 and 78,263.56 is: 108,001.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,929.92 : 195,859.65 = 78,263.56 : x
  2. Step 2: Convert to fraction form
    141,929.92/195,859.65 = 78,263.56/x
  3. Step 3: Cross multiply
    141,929.92x = 195,859.65 × 78,263.56
  4. Step 4: Simplify right side
    141,929.92x = 15,328,673,469.35
  5. Step 5: Solve for x
    x = 15,328,673,469.35/141,929.92
  6. Step 6: Final answer
    x = 108,001.71

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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.