Home / 141,519.45-195,289.79-77,855.61

Finding the Fourth Proportional to 141,519.45, 195,289.79 and 77,855.61

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Solution

The fourth proportional to 141,519.45, 195,289.79 and 77,855.61 is: 107,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,519.45 : 195,289.79 = 77,855.61 : x
  2. Step 2: Convert to fraction form
    141,519.45/195,289.79 = 77,855.61/x
  3. Step 3: Cross multiply
    141,519.45x = 195,289.79 × 77,855.61
  4. Step 4: Simplify right side
    141,519.45x = 15,204,405,337.94
  5. Step 5: Solve for x
    x = 15,204,405,337.94/141,519.45
  6. Step 6: Final answer
    x = 107,436.86

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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.