Home / 141,320.56-195,013.20-80,891.68

Finding the Fourth Proportional to 141,320.56, 195,013.20 and 80,891.68

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Solution

The fourth proportional to 141,320.56, 195,013.20 and 80,891.68 is: 111,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,320.56 : 195,013.20 = 80,891.68 : x
  2. Step 2: Convert to fraction form
    141,320.56/195,013.20 = 80,891.68/x
  3. Step 3: Cross multiply
    141,320.56x = 195,013.20 × 80,891.68
  4. Step 4: Simplify right side
    141,320.56x = 15,774,945,370.18
  5. Step 5: Solve for x
    x = 15,774,945,370.18/141,320.56
  6. Step 6: Final answer
    x = 111,625.27

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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.