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Finding the Fourth Proportional to 114.99, 172.33 and 110.79

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Solution

The fourth proportional to 114.99, 172.33 and 110.79 is: 166.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.99 : 172.33 = 110.79 : x
  2. Step 2: Convert to fraction form
    114.99/172.33 = 110.79/x
  3. Step 3: Cross multiply
    114.99x = 172.33 × 110.79
  4. Step 4: Simplify right side
    114.99x = 19,092.65
  5. Step 5: Solve for x
    x = 19,092.65/114.99
  6. Step 6: Final answer
    x = 166.03

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Why These Related Problems?

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