Home / 199,997.33-276,065.76-115,148.21

Finding the Fourth Proportional to 199,997.33, 276,065.76 and 115,148.21

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Solution

The fourth proportional to 199,997.33, 276,065.76 and 115,148.21 is: 158,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,997.33 : 276,065.76 = 115,148.21 : x
  2. Step 2: Convert to fraction form
    199,997.33/276,065.76 = 115,148.21/x
  3. Step 3: Cross multiply
    199,997.33x = 276,065.76 × 115,148.21
  4. Step 4: Simplify right side
    199,997.33x = 31,788,476,725.96
  5. Step 5: Solve for x
    x = 31,788,476,725.96/199,997.33
  6. Step 6: Final answer
    x = 158,944.51

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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.