Home / 141,776.91-195,650.58-81,357.06

Finding the Fourth Proportional to 141,776.91, 195,650.58 and 81,357.06

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Solution

The fourth proportional to 141,776.91, 195,650.58 and 81,357.06 is: 112,271.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,776.91 : 195,650.58 = 81,357.06 : x
  2. Step 2: Convert to fraction form
    141,776.91/195,650.58 = 81,357.06/x
  3. Step 3: Cross multiply
    141,776.91x = 195,650.58 × 81,357.06
  4. Step 4: Simplify right side
    141,776.91x = 15,917,555,976.09
  5. Step 5: Solve for x
    x = 15,917,555,976.09/141,776.91
  6. Step 6: Final answer
    x = 112,271.85

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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.