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Finding the Fourth Proportional to 111.07, 167.22 and 101.13

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Solution

The fourth proportional to 111.07, 167.22 and 101.13 is: 152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.07 : 167.22 = 101.13 : x
  2. Step 2: Convert to fraction form
    111.07/167.22 = 101.13/x
  3. Step 3: Cross multiply
    111.07x = 167.22 × 101.13
  4. Step 4: Simplify right side
    111.07x = 16,910.96
  5. Step 5: Solve for x
    x = 16,910.96/111.07
  6. Step 6: Final answer
    x = 152.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.