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Finding the Fourth Proportional to 124.35, 186.53 and 63.47

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Solution

The fourth proportional to 124.35, 186.53 and 63.47 is: 95.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.35 : 186.53 = 63.47 : x
  2. Step 2: Convert to fraction form
    124.35/186.53 = 63.47/x
  3. Step 3: Cross multiply
    124.35x = 186.53 × 63.47
  4. Step 4: Simplify right side
    124.35x = 11,837.81
  5. Step 5: Solve for x
    x = 11,837.81/124.35
  6. Step 6: Final answer
    x = 95.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.