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Finding the Fourth Proportional to 125.39, 187.24 and 124.63

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Solution

The fourth proportional to 125.39, 187.24 and 124.63 is: 186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.39 : 187.24 = 124.63 : x
  2. Step 2: Convert to fraction form
    125.39/187.24 = 124.63/x
  3. Step 3: Cross multiply
    125.39x = 187.24 × 124.63
  4. Step 4: Simplify right side
    125.39x = 23,335.72
  5. Step 5: Solve for x
    x = 23,335.72/125.39
  6. Step 6: Final answer
    x = 186.11

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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.