Home / 268,672.20-403,022.70-81,669.48

Finding the Fourth Proportional to 268,672.20, 403,022.70 and 81,669.48

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Solution

The fourth proportional to 268,672.20, 403,022.70 and 81,669.48 is: 122,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,672.20 : 403,022.70 = 81,669.48 : x
  2. Step 2: Convert to fraction form
    268,672.20/403,022.70 = 81,669.48/x
  3. Step 3: Cross multiply
    268,672.20x = 403,022.70 × 81,669.48
  4. Step 4: Simplify right side
    268,672.20x = 32,914,654,337.20
  5. Step 5: Solve for x
    x = 32,914,654,337.20/268,672.20
  6. Step 6: Final answer
    x = 122,508.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.