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Finding the Fourth Proportional to 161.01, 222.08 and 119.43

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Solution

The fourth proportional to 161.01, 222.08 and 119.43 is: 164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.01 : 222.08 = 119.43 : x
  2. Step 2: Convert to fraction form
    161.01/222.08 = 119.43/x
  3. Step 3: Cross multiply
    161.01x = 222.08 × 119.43
  4. Step 4: Simplify right side
    161.01x = 26,522.42
  5. Step 5: Solve for x
    x = 26,522.42/161.01
  6. Step 6: Final answer
    x = 164.73

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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.