Home / 103,754.66-143,185.25-57,818.43

Finding the Fourth Proportional to 103,754.66, 143,185.25 and 57,818.43

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Solution

The fourth proportional to 103,754.66, 143,185.25 and 57,818.43 is: 79,791.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,754.66 : 143,185.25 = 57,818.43 : x
  2. Step 2: Convert to fraction form
    103,754.66/143,185.25 = 57,818.43/x
  3. Step 3: Cross multiply
    103,754.66x = 143,185.25 × 57,818.43
  4. Step 4: Simplify right side
    103,754.66x = 8,278,746,498.70
  5. Step 5: Solve for x
    x = 8,278,746,498.70/103,754.66
  6. Step 6: Final answer
    x = 79,791.57

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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.