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Finding the Fourth Proportional to 101.65, 140.26 and 60.22

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Solution

The fourth proportional to 101.65, 140.26 and 60.22 is: 83.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.65 : 140.26 = 60.22 : x
  2. Step 2: Convert to fraction form
    101.65/140.26 = 60.22/x
  3. Step 3: Cross multiply
    101.65x = 140.26 × 60.22
  4. Step 4: Simplify right side
    101.65x = 8,446.33
  5. Step 5: Solve for x
    x = 8,446.33/101.65
  6. Step 6: Final answer
    x = 83.09

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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.