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Finding the Fourth Proportional to 124.86, 188.48 and 124.14

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Solution

The fourth proportional to 124.86, 188.48 and 124.14 is: 187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.86 : 188.48 = 124.14 : x
  2. Step 2: Convert to fraction form
    124.86/188.48 = 124.14/x
  3. Step 3: Cross multiply
    124.86x = 188.48 × 124.14
  4. Step 4: Simplify right side
    124.86x = 23,397.91
  5. Step 5: Solve for x
    x = 23,397.91/124.86
  6. Step 6: Final answer
    x = 187.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.