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Finding the Fourth Proportional to 197,546, 272,613.48 and 108,122

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Solution

The fourth proportional to 197,546, 272,613.48 and 108,122 is: 149,208.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,546 : 272,613.48 = 108,122 : x
  2. Step 2: Convert to fraction form
    197,546/272,613.48 = 108,122/x
  3. Step 3: Cross multiply
    197,546x = 272,613.48 × 108,122
  4. Step 4: Simplify right side
    197,546x = 29,475,514,684.56
  5. Step 5: Solve for x
    x = 29,475,514,684.56/197,546
  6. Step 6: Final answer
    x = 149,208.36

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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.