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Finding the Fourth Proportional to 161,300.43, 222,594.08 and 89,680.43

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Solution

The fourth proportional to 161,300.43, 222,594.08 and 89,680.43 is: 123,758.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,300.43 : 222,594.08 = 89,680.43 : x
  2. Step 2: Convert to fraction form
    161,300.43/222,594.08 = 89,680.43/x
  3. Step 3: Cross multiply
    161,300.43x = 222,594.08 × 89,680.43
  4. Step 4: Simplify right side
    161,300.43x = 19,962,332,917.94
  5. Step 5: Solve for x
    x = 19,962,332,917.94/161,300.43
  6. Step 6: Final answer
    x = 123,758.71

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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.