Home / 102,704.29-141,719.06-57,380.54

Finding the Fourth Proportional to 102,704.29, 141,719.06 and 57,380.54

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Solution

The fourth proportional to 102,704.29, 141,719.06 and 57,380.54 is: 79,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,704.29 : 141,719.06 = 57,380.54 : x
  2. Step 2: Convert to fraction form
    102,704.29/141,719.06 = 57,380.54/x
  3. Step 3: Cross multiply
    102,704.29x = 141,719.06 × 57,380.54
  4. Step 4: Simplify right side
    102,704.29x = 8,131,915,625.95
  5. Step 5: Solve for x
    x = 8,131,915,625.95/102,704.29
  6. Step 6: Final answer
    x = 79,177.96

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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.