Home / 201,942.20-278,668.82-111,297.89

Finding the Fourth Proportional to 201,942.20, 278,668.82 and 111,297.89

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Solution

The fourth proportional to 201,942.20, 278,668.82 and 111,297.89 is: 153,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,942.20 : 278,668.82 = 111,297.89 : x
  2. Step 2: Convert to fraction form
    201,942.20/278,668.82 = 111,297.89/x
  3. Step 3: Cross multiply
    201,942.20x = 278,668.82 × 111,297.89
  4. Step 4: Simplify right side
    201,942.20x = 31,015,251,674.79
  5. Step 5: Solve for x
    x = 31,015,251,674.79/201,942.20
  6. Step 6: Final answer
    x = 153,584.80

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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.