Home / 201,932.16-278,668.28-111,291.44

Finding the Fourth Proportional to 201,932.16, 278,668.28 and 111,291.44

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Solution

The fourth proportional to 201,932.16, 278,668.28 and 111,291.44 is: 153,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,932.16 : 278,668.28 = 111,291.44 : x
  2. Step 2: Convert to fraction form
    201,932.16/278,668.28 = 111,291.44/x
  3. Step 3: Cross multiply
    201,932.16x = 278,668.28 × 111,291.44
  4. Step 4: Simplify right side
    201,932.16x = 31,013,394,163.52
  5. Step 5: Solve for x
    x = 31,013,394,163.52/201,932.16
  6. Step 6: Final answer
    x = 153,583.23

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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.