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Finding the Fourth Proportional to 167.36, 231.03 and 109.14

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Solution

The fourth proportional to 167.36, 231.03 and 109.14 is: 150.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.36 : 231.03 = 109.14 : x
  2. Step 2: Convert to fraction form
    167.36/231.03 = 109.14/x
  3. Step 3: Cross multiply
    167.36x = 231.03 × 109.14
  4. Step 4: Simplify right side
    167.36x = 25,214.61
  5. Step 5: Solve for x
    x = 25,214.61/167.36
  6. Step 6: Final answer
    x = 150.67

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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.