Home / 141,766.14-195,637.86-78,102.57

Finding the Fourth Proportional to 141,766.14, 195,637.86 and 78,102.57

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Solution

The fourth proportional to 141,766.14, 195,637.86 and 78,102.57 is: 107,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,766.14 : 195,637.86 = 78,102.57 : x
  2. Step 2: Convert to fraction form
    141,766.14/195,637.86 = 78,102.57/x
  3. Step 3: Cross multiply
    141,766.14x = 195,637.86 × 78,102.57
  4. Step 4: Simplify right side
    141,766.14x = 15,279,819,655.30
  5. Step 5: Solve for x
    x = 15,279,819,655.30/141,766.14
  6. Step 6: Final answer
    x = 107,781.87

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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.