Home / 141,939.20-195,873.44-78,283.04

Finding the Fourth Proportional to 141,939.20, 195,873.44 and 78,283.04

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Solution

The fourth proportional to 141,939.20, 195,873.44 and 78,283.04 is: 108,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,939.20 : 195,873.44 = 78,283.04 : x
  2. Step 2: Convert to fraction form
    141,939.20/195,873.44 = 78,283.04/x
  3. Step 3: Cross multiply
    141,939.20x = 195,873.44 × 78,283.04
  4. Step 4: Simplify right side
    141,939.20x = 15,333,568,338.46
  5. Step 5: Solve for x
    x = 15,333,568,338.46/141,939.20
  6. Step 6: Final answer
    x = 108,029.13

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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.