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Finding the Fourth Proportional to 161.66, 222.22 and 132.10

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Solution

The fourth proportional to 161.66, 222.22 and 132.10 is: 181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.66 : 222.22 = 132.10 : x
  2. Step 2: Convert to fraction form
    161.66/222.22 = 132.10/x
  3. Step 3: Cross multiply
    161.66x = 222.22 × 132.10
  4. Step 4: Simplify right side
    161.66x = 29,355.26
  5. Step 5: Solve for x
    x = 29,355.26/161.66
  6. Step 6: Final answer
    x = 181.59

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.