Home / 141,984.56-195,939.24-78,321.44

Finding the Fourth Proportional to 141,984.56, 195,939.24 and 78,321.44

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Solution

The fourth proportional to 141,984.56, 195,939.24 and 78,321.44 is: 108,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,984.56 : 195,939.24 = 78,321.44 : x
  2. Step 2: Convert to fraction form
    141,984.56/195,939.24 = 78,321.44/x
  3. Step 3: Cross multiply
    141,984.56x = 195,939.24 × 78,321.44
  4. Step 4: Simplify right side
    141,984.56x = 15,346,243,429.31
  5. Step 5: Solve for x
    x = 15,346,243,429.31/141,984.56
  6. Step 6: Final answer
    x = 108,083.89

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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.