Home / 102,517.11-141,472.31-57,194.55

Finding the Fourth Proportional to 102,517.11, 141,472.31 and 57,194.55

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Solution

The fourth proportional to 102,517.11, 141,472.31 and 57,194.55 is: 78,927.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,517.11 : 141,472.31 = 57,194.55 : x
  2. Step 2: Convert to fraction form
    102,517.11/141,472.31 = 57,194.55/x
  3. Step 3: Cross multiply
    102,517.11x = 141,472.31 × 57,194.55
  4. Step 4: Simplify right side
    102,517.11x = 8,091,444,821.94
  5. Step 5: Solve for x
    x = 8,091,444,821.94/102,517.11
  6. Step 6: Final answer
    x = 78,927.75

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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.