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Finding the Fourth Proportional to 124.90, 171.67 and 110.26

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Solution

The fourth proportional to 124.90, 171.67 and 110.26 is: 151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.90 : 171.67 = 110.26 : x
  2. Step 2: Convert to fraction form
    124.90/171.67 = 110.26/x
  3. Step 3: Cross multiply
    124.90x = 171.67 × 110.26
  4. Step 4: Simplify right side
    124.90x = 18,927.78
  5. Step 5: Solve for x
    x = 18,927.78/124.90
  6. Step 6: Final answer
    x = 151.54

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.