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Finding the Fourth Proportional to 114.37, 171.25 and 99.59

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Solution

The fourth proportional to 114.37, 171.25 and 99.59 is: 149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.37 : 171.25 = 99.59 : x
  2. Step 2: Convert to fraction form
    114.37/171.25 = 99.59/x
  3. Step 3: Cross multiply
    114.37x = 171.25 × 99.59
  4. Step 4: Simplify right side
    114.37x = 17,053.68
  5. Step 5: Solve for x
    x = 17,053.68/114.37
  6. Step 6: Final answer
    x = 149.11

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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.