Home / 201,964.49-278,698.41-111,321.17

Finding the Fourth Proportional to 201,964.49, 278,698.41 and 111,321.17

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Solution

The fourth proportional to 201,964.49, 278,698.41 and 111,321.17 is: 153,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,964.49 : 278,698.41 = 111,321.17 : x
  2. Step 2: Convert to fraction form
    201,964.49/278,698.41 = 111,321.17/x
  3. Step 3: Cross multiply
    201,964.49x = 278,698.41 × 111,321.17
  4. Step 4: Simplify right side
    201,964.49x = 31,025,033,078.34
  5. Step 5: Solve for x
    x = 31,025,033,078.34/201,964.49
  6. Step 6: Final answer
    x = 153,616.28

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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.