Home / 199,972.38-276,031.38-115,123.26

Finding the Fourth Proportional to 199,972.38, 276,031.38 and 115,123.26

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Solution

The fourth proportional to 199,972.38, 276,031.38 and 115,123.26 is: 158,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,972.38 : 276,031.38 = 115,123.26 : x
  2. Step 2: Convert to fraction form
    199,972.38/276,031.38 = 115,123.26/x
  3. Step 3: Cross multiply
    199,972.38x = 276,031.38 × 115,123.26
  4. Step 4: Simplify right side
    199,972.38x = 31,777,632,327.90
  5. Step 5: Solve for x
    x = 31,777,632,327.90/199,972.38
  6. Step 6: Final answer
    x = 158,910.11

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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.