Home / 143,605.43-198,175.41-79,958.26

Finding the Fourth Proportional to 143,605.43, 198,175.41 and 79,958.26

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Solution

The fourth proportional to 143,605.43, 198,175.41 and 79,958.26 is: 110,342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,605.43 : 198,175.41 = 79,958.26 : x
  2. Step 2: Convert to fraction form
    143,605.43/198,175.41 = 79,958.26/x
  3. Step 3: Cross multiply
    143,605.43x = 198,175.41 × 79,958.26
  4. Step 4: Simplify right side
    143,605.43x = 15,845,760,958.39
  5. Step 5: Solve for x
    x = 15,845,760,958.39/143,605.43
  6. Step 6: Final answer
    x = 110,342.35

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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.