Home / 102,723.26-141,755.38-57,401.62

Finding the Fourth Proportional to 102,723.26, 141,755.38 and 57,401.62

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Solution

The fourth proportional to 102,723.26, 141,755.38 and 57,401.62 is: 79,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,723.26 : 141,755.38 = 57,401.62 : x
  2. Step 2: Convert to fraction form
    102,723.26/141,755.38 = 57,401.62/x
  3. Step 3: Cross multiply
    102,723.26x = 141,755.38 × 57,401.62
  4. Step 4: Simplify right side
    102,723.26x = 8,136,987,839.20
  5. Step 5: Solve for x
    x = 8,136,987,839.20/102,723.26
  6. Step 6: Final answer
    x = 79,212.71

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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.