Home / 141,912.91-195,832.79-80,651.09

Finding the Fourth Proportional to 141,912.91, 195,832.79 and 80,651.09

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Solution

The fourth proportional to 141,912.91, 195,832.79 and 80,651.09 is: 111,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,912.91 : 195,832.79 = 80,651.09 : x
  2. Step 2: Convert to fraction form
    141,912.91/195,832.79 = 80,651.09/x
  3. Step 3: Cross multiply
    141,912.91x = 195,832.79 × 80,651.09
  4. Step 4: Simplify right side
    141,912.91x = 15,794,128,360.01
  5. Step 5: Solve for x
    x = 15,794,128,360.01/141,912.91
  6. Step 6: Final answer
    x = 111,294.51

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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.