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Finding the Fourth Proportional to 167.72, 251.64 and 107

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Solution

The fourth proportional to 167.72, 251.64 and 107 is: 160.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.72 : 251.64 = 107 : x
  2. Step 2: Convert to fraction form
    167.72/251.64 = 107/x
  3. Step 3: Cross multiply
    167.72x = 251.64 × 107
  4. Step 4: Simplify right side
    167.72x = 26,925.48
  5. Step 5: Solve for x
    x = 26,925.48/167.72
  6. Step 6: Final answer
    x = 160.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.