Home / 268,748.96-403,183.37-81,775.04

Finding the Fourth Proportional to 268,748.96, 403,183.37 and 81,775.04

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Solution

The fourth proportional to 268,748.96, 403,183.37 and 81,775.04 is: 122,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,748.96 : 403,183.37 = 81,775.04 : x
  2. Step 2: Convert to fraction form
    268,748.96/403,183.37 = 81,775.04/x
  3. Step 3: Cross multiply
    268,748.96x = 403,183.37 × 81,775.04
  4. Step 4: Simplify right side
    268,748.96x = 32,970,334,397.61
  5. Step 5: Solve for x
    x = 32,970,334,397.61/268,748.96
  6. Step 6: Final answer
    x = 122,680.79

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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.