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Finding the Fourth Proportional to 146.08, 201.22 and 125.42

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Solution

The fourth proportional to 146.08, 201.22 and 125.42 is: 172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.08 : 201.22 = 125.42 : x
  2. Step 2: Convert to fraction form
    146.08/201.22 = 125.42/x
  3. Step 3: Cross multiply
    146.08x = 201.22 × 125.42
  4. Step 4: Simplify right side
    146.08x = 25,237.20
  5. Step 5: Solve for x
    x = 25,237.20/146.08
  6. Step 6: Final answer
    x = 172.77

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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.