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Finding the Fourth Proportional to 161,008.62, 222,180.80 and 89,383.08

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Solution

The fourth proportional to 161,008.62, 222,180.80 and 89,383.08 is: 123,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,008.62 : 222,180.80 = 89,383.08 : x
  2. Step 2: Convert to fraction form
    161,008.62/222,180.80 = 89,383.08/x
  3. Step 3: Cross multiply
    161,008.62x = 222,180.80 × 89,383.08
  4. Step 4: Simplify right side
    161,008.62x = 19,859,204,220.86
  5. Step 5: Solve for x
    x = 19,859,204,220.86/161,008.62
  6. Step 6: Final answer
    x = 123,342.49

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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.