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Finding the Fourth Proportional to 199,162, 274,840.09 and 108,518.72

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Solution

The fourth proportional to 199,162, 274,840.09 and 108,518.72 is: 149,753.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,162 : 274,840.09 = 108,518.72 : x
  2. Step 2: Convert to fraction form
    199,162/274,840.09 = 108,518.72/x
  3. Step 3: Cross multiply
    199,162x = 274,840.09 × 108,518.72
  4. Step 4: Simplify right side
    199,162x = 29,825,292,854.69
  5. Step 5: Solve for x
    x = 29,825,292,854.69/199,162
  6. Step 6: Final answer
    x = 149,753.93

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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.