Home / 201,665.25-278,293.14-111,020.49

Finding the Fourth Proportional to 201,665.25, 278,293.14 and 111,020.49

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Solution

The fourth proportional to 201,665.25, 278,293.14 and 111,020.49 is: 153,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,665.25 : 278,293.14 = 111,020.49 : x
  2. Step 2: Convert to fraction form
    201,665.25/278,293.14 = 111,020.49/x
  3. Step 3: Cross multiply
    201,665.25x = 278,293.14 × 111,020.49
  4. Step 4: Simplify right side
    201,665.25x = 30,896,240,766.44
  5. Step 5: Solve for x
    x = 30,896,240,766.44/201,665.25
  6. Step 6: Final answer
    x = 153,205.58

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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.