Home / 199,789.65-275,705.13-109,146

Finding the Fourth Proportional to 199,789.65, 275,705.13 and 109,146

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Solution

The fourth proportional to 199,789.65, 275,705.13 and 109,146 is: 150,618.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,789.65 : 275,705.13 = 109,146 : x
  2. Step 2: Convert to fraction form
    199,789.65/275,705.13 = 109,146/x
  3. Step 3: Cross multiply
    199,789.65x = 275,705.13 × 109,146
  4. Step 4: Simplify right side
    199,789.65x = 30,092,112,118.98
  5. Step 5: Solve for x
    x = 30,092,112,118.98/199,789.65
  6. Step 6: Final answer
    x = 150,618.97

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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.