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Finding the Fourth Proportional to 161.08, 222.29 and 94.68

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Solution

The fourth proportional to 161.08, 222.29 and 94.68 is: 130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.08 : 222.29 = 94.68 : x
  2. Step 2: Convert to fraction form
    161.08/222.29 = 94.68/x
  3. Step 3: Cross multiply
    161.08x = 222.29 × 94.68
  4. Step 4: Simplify right side
    161.08x = 21,046.42
  5. Step 5: Solve for x
    x = 21,046.42/161.08
  6. Step 6: Final answer
    x = 130.66

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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.