Home / 201,721.76-278,382.72-111,084.44

Finding the Fourth Proportional to 201,721.76, 278,382.72 and 111,084.44

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Solution

The fourth proportional to 201,721.76, 278,382.72 and 111,084.44 is: 153,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,721.76 : 278,382.72 = 111,084.44 : x
  2. Step 2: Convert to fraction form
    201,721.76/278,382.72 = 111,084.44/x
  3. Step 3: Cross multiply
    201,721.76x = 278,382.72 × 111,084.44
  4. Step 4: Simplify right side
    201,721.76x = 30,923,988,556.88
  5. Step 5: Solve for x
    x = 30,923,988,556.88/201,721.76
  6. Step 6: Final answer
    x = 153,300.21

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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.