Home / 201,927.09-278,661.29-111,286.32

Finding the Fourth Proportional to 201,927.09, 278,661.29 and 111,286.32

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Solution

The fourth proportional to 201,927.09, 278,661.29 and 111,286.32 is: 153,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,927.09 : 278,661.29 = 111,286.32 : x
  2. Step 2: Convert to fraction form
    201,927.09/278,661.29 = 111,286.32/x
  3. Step 3: Cross multiply
    201,927.09x = 278,661.29 × 111,286.32
  4. Step 4: Simplify right side
    201,927.09x = 31,011,188,934.12
  5. Step 5: Solve for x
    x = 31,011,188,934.12/201,927.09
  6. Step 6: Final answer
    x = 153,576.17

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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.