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Finding the Fourth Proportional to 166.77, 229.55 and 125.37

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Solution

The fourth proportional to 166.77, 229.55 and 125.37 is: 172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.77 : 229.55 = 125.37 : x
  2. Step 2: Convert to fraction form
    166.77/229.55 = 125.37/x
  3. Step 3: Cross multiply
    166.77x = 229.55 × 125.37
  4. Step 4: Simplify right side
    166.77x = 28,778.06
  5. Step 5: Solve for x
    x = 28,778.06/166.77
  6. Step 6: Final answer
    x = 172.56

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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.