Home / 141,854.75-195,760.90-78,194.82

Finding the Fourth Proportional to 141,854.75, 195,760.90 and 78,194.82

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Solution

The fourth proportional to 141,854.75, 195,760.90 and 78,194.82 is: 107,909.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,854.75 : 195,760.90 = 78,194.82 : x
  2. Step 2: Convert to fraction form
    141,854.75/195,760.90 = 78,194.82/x
  3. Step 3: Cross multiply
    141,854.75x = 195,760.90 × 78,194.82
  4. Step 4: Simplify right side
    141,854.75x = 15,307,488,338.54
  5. Step 5: Solve for x
    x = 15,307,488,338.54/141,854.75
  6. Step 6: Final answer
    x = 107,909.59

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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.