Home / 161,127.70-222,348.68-89,512.09

Finding the Fourth Proportional to 161,127.70, 222,348.68 and 89,512.09

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Solution

The fourth proportional to 161,127.70, 222,348.68 and 89,512.09 is: 123,522.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,127.70 : 222,348.68 = 89,512.09 : x
  2. Step 2: Convert to fraction form
    161,127.70/222,348.68 = 89,512.09/x
  3. Step 3: Cross multiply
    161,127.70x = 222,348.68 × 89,512.09
  4. Step 4: Simplify right side
    161,127.70x = 19,902,894,387.78
  5. Step 5: Solve for x
    x = 19,902,894,387.78/161,127.70
  6. Step 6: Final answer
    x = 123,522.49

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1.5x scale

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.