Home / 141,115.64-194,739.33-80,687.42

Finding the Fourth Proportional to 141,115.64, 194,739.33 and 80,687.42

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Solution

The fourth proportional to 141,115.64, 194,739.33 and 80,687.42 is: 111,348.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,115.64 : 194,739.33 = 80,687.42 : x
  2. Step 2: Convert to fraction form
    141,115.64/194,739.33 = 80,687.42/x
  3. Step 3: Cross multiply
    141,115.64x = 194,739.33 × 80,687.42
  4. Step 4: Simplify right side
    141,115.64x = 15,713,014,110.23
  5. Step 5: Solve for x
    x = 15,713,014,110.23/141,115.64
  6. Step 6: Final answer
    x = 111,348.49

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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.