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Finding the Fourth Proportional to 171.91, 237.36 and 112.93

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Solution

The fourth proportional to 171.91, 237.36 and 112.93 is: 155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.91 : 237.36 = 112.93 : x
  2. Step 2: Convert to fraction form
    171.91/237.36 = 112.93/x
  3. Step 3: Cross multiply
    171.91x = 237.36 × 112.93
  4. Step 4: Simplify right side
    171.91x = 26,805.06
  5. Step 5: Solve for x
    x = 26,805.06/171.91
  6. Step 6: Final answer
    x = 155.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.