Home / 268,736.43-403,126.97-81,749.55

Finding the Fourth Proportional to 268,736.43, 403,126.97 and 81,749.55

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Solution

The fourth proportional to 268,736.43, 403,126.97 and 81,749.55 is: 122,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,736.43 : 403,126.97 = 81,749.55 : x
  2. Step 2: Convert to fraction form
    268,736.43/403,126.97 = 81,749.55/x
  3. Step 3: Cross multiply
    268,736.43x = 403,126.97 × 81,749.55
  4. Step 4: Simplify right side
    268,736.43x = 32,955,447,981.62
  5. Step 5: Solve for x
    x = 32,955,447,981.62/268,736.43
  6. Step 6: Final answer
    x = 122,631.11

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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.