Home / 125,481.10-173,166.96-68,122.78

Finding the Fourth Proportional to 125,481.10, 173,166.96 and 68,122.78

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Solution

The fourth proportional to 125,481.10, 173,166.96 and 68,122.78 is: 94,011.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,481.10 : 173,166.96 = 68,122.78 : x
  2. Step 2: Convert to fraction form
    125,481.10/173,166.96 = 68,122.78/x
  3. Step 3: Cross multiply
    125,481.10x = 173,166.96 × 68,122.78
  4. Step 4: Simplify right side
    125,481.10x = 11,796,614,719.35
  5. Step 5: Solve for x
    x = 11,796,614,719.35/125,481.10
  6. Step 6: Final answer
    x = 94,011.09

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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.