Home / 141,976.86-195,928.26-81,559.20

Finding the Fourth Proportional to 141,976.86, 195,928.26 and 81,559.20

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Solution

The fourth proportional to 141,976.86, 195,928.26 and 81,559.20 is: 112,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,976.86 : 195,928.26 = 81,559.20 : x
  2. Step 2: Convert to fraction form
    141,976.86/195,928.26 = 81,559.20/x
  3. Step 3: Cross multiply
    141,976.86x = 195,928.26 × 81,559.20
  4. Step 4: Simplify right side
    141,976.86x = 15,979,752,142.99
  5. Step 5: Solve for x
    x = 15,979,752,142.99/141,976.86
  6. Step 6: Final answer
    x = 112,551.81

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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.