Home / 199,974.72-275,965.38-115,091.76

Finding the Fourth Proportional to 199,974.72, 275,965.38 and 115,091.76

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Solution

The fourth proportional to 199,974.72, 275,965.38 and 115,091.76 is: 158,826.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,974.72 : 275,965.38 = 115,091.76 : x
  2. Step 2: Convert to fraction form
    199,974.72/275,965.38 = 115,091.76/x
  3. Step 3: Cross multiply
    199,974.72x = 275,965.38 × 115,091.76
  4. Step 4: Simplify right side
    199,974.72x = 31,761,341,283.27
  5. Step 5: Solve for x
    x = 31,761,341,283.27/199,974.72
  6. Step 6: Final answer
    x = 158,826.78

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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.