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Finding the Fourth Proportional to 124.11, 171.41 and 114.23

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Solution

The fourth proportional to 124.11, 171.41 and 114.23 is: 157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.11 : 171.41 = 114.23 : x
  2. Step 2: Convert to fraction form
    124.11/171.41 = 114.23/x
  3. Step 3: Cross multiply
    124.11x = 171.41 × 114.23
  4. Step 4: Simplify right side
    124.11x = 19,580.16
  5. Step 5: Solve for x
    x = 19,580.16/124.11
  6. Step 6: Final answer
    x = 157.77

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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.