Home / 102,498.20-141,447.68-57,179.12

Finding the Fourth Proportional to 102,498.20, 141,447.68 and 57,179.12

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Solution

The fourth proportional to 102,498.20, 141,447.68 and 57,179.12 is: 78,907.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,498.20 : 141,447.68 = 57,179.12 : x
  2. Step 2: Convert to fraction form
    102,498.20/141,447.68 = 57,179.12/x
  3. Step 3: Cross multiply
    102,498.20x = 141,447.68 × 57,179.12
  4. Step 4: Simplify right side
    102,498.20x = 8,087,853,868.44
  5. Step 5: Solve for x
    x = 8,087,853,868.44/102,498.20
  6. Step 6: Final answer
    x = 78,907.28

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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.