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Finding the Fourth Proportional to 124.53, 171.73 and 114.71

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Solution

The fourth proportional to 124.53, 171.73 and 114.71 is: 158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.53 : 171.73 = 114.71 : x
  2. Step 2: Convert to fraction form
    124.53/171.73 = 114.71/x
  3. Step 3: Cross multiply
    124.53x = 171.73 × 114.71
  4. Step 4: Simplify right side
    124.53x = 19,699.15
  5. Step 5: Solve for x
    x = 19,699.15/124.53
  6. Step 6: Final answer
    x = 158.19

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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.