Home / 141,398.50-195,131.25-77,736.75

Finding the Fourth Proportional to 141,398.50, 195,131.25 and 77,736.75

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Solution

The fourth proportional to 141,398.50, 195,131.25 and 77,736.75 is: 107,277.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,398.50 : 195,131.25 = 77,736.75 : x
  2. Step 2: Convert to fraction form
    141,398.50/195,131.25 = 77,736.75/x
  3. Step 3: Cross multiply
    141,398.50x = 195,131.25 × 77,736.75
  4. Step 4: Simplify right side
    141,398.50x = 15,168,869,198.44
  5. Step 5: Solve for x
    x = 15,168,869,198.44/141,398.50
  6. Step 6: Final answer
    x = 107,277.44

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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.