Home / 102,179.97-140,986.24-61,895.43

Finding the Fourth Proportional to 102,179.97, 140,986.24 and 61,895.43

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Solution

The fourth proportional to 102,179.97, 140,986.24 and 61,895.43 is: 85,402.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,179.97 : 140,986.24 = 61,895.43 : x
  2. Step 2: Convert to fraction form
    102,179.97/140,986.24 = 61,895.43/x
  3. Step 3: Cross multiply
    102,179.97x = 140,986.24 × 61,895.43
  4. Step 4: Simplify right side
    102,179.97x = 8,726,403,794.14
  5. Step 5: Solve for x
    x = 8,726,403,794.14/102,179.97
  6. Step 6: Final answer
    x = 85,402.29

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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.