Home / 201,917.20-278,641.92-117,042.16

Finding the Fourth Proportional to 201,917.20, 278,641.92 and 117,042.16

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Solution

The fourth proportional to 201,917.20, 278,641.92 and 117,042.16 is: 161,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,917.20 : 278,641.92 = 117,042.16 : x
  2. Step 2: Convert to fraction form
    201,917.20/278,641.92 = 117,042.16/x
  3. Step 3: Cross multiply
    201,917.20x = 278,641.92 × 117,042.16
  4. Step 4: Simplify right side
    201,917.20x = 32,612,852,183.35
  5. Step 5: Solve for x
    x = 32,612,852,183.35/201,917.20
  6. Step 6: Final answer
    x = 161,515.97

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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.