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Finding the Fourth Proportional to 162.01, 223.49 and 102.97

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Solution

The fourth proportional to 162.01, 223.49 and 102.97 is: 142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.01 : 223.49 = 102.97 : x
  2. Step 2: Convert to fraction form
    162.01/223.49 = 102.97/x
  3. Step 3: Cross multiply
    162.01x = 223.49 × 102.97
  4. Step 4: Simplify right side
    162.01x = 23,012.77
  5. Step 5: Solve for x
    x = 23,012.77/162.01
  6. Step 6: Final answer
    x = 142.05

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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.