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Finding the Fourth Proportional to 162.29, 223.73 and 123.41

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Solution

The fourth proportional to 162.29, 223.73 and 123.41 is: 170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.29 : 223.73 = 123.41 : x
  2. Step 2: Convert to fraction form
    162.29/223.73 = 123.41/x
  3. Step 3: Cross multiply
    162.29x = 223.73 × 123.41
  4. Step 4: Simplify right side
    162.29x = 27,609.90
  5. Step 5: Solve for x
    x = 27,609.90/162.29
  6. Step 6: Final answer
    x = 170.13

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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.