Home / 141,519.70-195,290.13-77,855.86

Finding the Fourth Proportional to 141,519.70, 195,290.13 and 77,855.86

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Solution

The fourth proportional to 141,519.70, 195,290.13 and 77,855.86 is: 107,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,519.70 : 195,290.13 = 77,855.86 : x
  2. Step 2: Convert to fraction form
    141,519.70/195,290.13 = 77,855.86/x
  3. Step 3: Cross multiply
    141,519.70x = 195,290.13 × 77,855.86
  4. Step 4: Simplify right side
    141,519.70x = 15,204,481,020.66
  5. Step 5: Solve for x
    x = 15,204,481,020.66/141,519.70
  6. Step 6: Final answer
    x = 107,437.21

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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.