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Finding the Fourth Proportional to 114.93, 171.23 and 113.79

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Solution

The fourth proportional to 114.93, 171.23 and 113.79 is: 169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.93 : 171.23 = 113.79 : x
  2. Step 2: Convert to fraction form
    114.93/171.23 = 113.79/x
  3. Step 3: Cross multiply
    114.93x = 171.23 × 113.79
  4. Step 4: Simplify right side
    114.93x = 19,483.69
  5. Step 5: Solve for x
    x = 19,483.69/114.93
  6. Step 6: Final answer
    x = 169.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.