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Finding the Fourth Proportional to 199,679.73, 275,569.19 and 109,044.12

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Solution

The fourth proportional to 199,679.73, 275,569.19 and 109,044.12 is: 150,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,679.73 : 275,569.19 = 109,044.12 : x
  2. Step 2: Convert to fraction form
    199,679.73/275,569.19 = 109,044.12/x
  3. Step 3: Cross multiply
    199,679.73x = 275,569.19 × 109,044.12
  4. Step 4: Simplify right side
    199,679.73x = 30,049,200,719.74
  5. Step 5: Solve for x
    x = 30,049,200,719.74/199,679.73
  6. Step 6: Final answer
    x = 150,486.98

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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.