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Finding the Fourth Proportional to 197,586, 272,668.68 and 108,162

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Solution

The fourth proportional to 197,586, 272,668.68 and 108,162 is: 149,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,586 : 272,668.68 = 108,162 : x
  2. Step 2: Convert to fraction form
    197,586/272,668.68 = 108,162/x
  3. Step 3: Cross multiply
    197,586x = 272,668.68 × 108,162
  4. Step 4: Simplify right side
    197,586x = 29,492,389,766.16
  5. Step 5: Solve for x
    x = 29,492,389,766.16/197,586
  6. Step 6: Final answer
    x = 149,263.56

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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.