Home / 201,968.77-278,704.23-111,319.75

Finding the Fourth Proportional to 201,968.77, 278,704.23 and 111,319.75

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Solution

The fourth proportional to 201,968.77, 278,704.23 and 111,319.75 is: 153,614.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,968.77 : 278,704.23 = 111,319.75 : x
  2. Step 2: Convert to fraction form
    201,968.77/278,704.23 = 111,319.75/x
  3. Step 3: Cross multiply
    201,968.77x = 278,704.23 × 111,319.75
  4. Step 4: Simplify right side
    201,968.77x = 31,025,285,207.54
  5. Step 5: Solve for x
    x = 31,025,285,207.54/201,968.77
  6. Step 6: Final answer
    x = 153,614.27

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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.