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Finding the Fourth Proportional to 114.58, 171.01 and 111.85

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Solution

The fourth proportional to 114.58, 171.01 and 111.85 is: 166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.58 : 171.01 = 111.85 : x
  2. Step 2: Convert to fraction form
    114.58/171.01 = 111.85/x
  3. Step 3: Cross multiply
    114.58x = 171.01 × 111.85
  4. Step 4: Simplify right side
    114.58x = 19,127.18
  5. Step 5: Solve for x
    x = 19,127.18/114.58
  6. Step 6: Final answer
    x = 166.93

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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.