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Finding the Fourth Proportional to 124.34, 186.49 and 47.29

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Solution

The fourth proportional to 124.34, 186.49 and 47.29 is: 70.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.34 : 186.49 = 47.29 : x
  2. Step 2: Convert to fraction form
    124.34/186.49 = 47.29/x
  3. Step 3: Cross multiply
    124.34x = 186.49 × 47.29
  4. Step 4: Simplify right side
    124.34x = 8,819.11
  5. Step 5: Solve for x
    x = 8,819.11/124.34
  6. Step 6: Final answer
    x = 70.93

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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.