Home / 201,713.36-278,362.14-111,067.43

Finding the Fourth Proportional to 201,713.36, 278,362.14 and 111,067.43

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Solution

The fourth proportional to 201,713.36, 278,362.14 and 111,067.43 is: 153,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,713.36 : 278,362.14 = 111,067.43 : x
  2. Step 2: Convert to fraction form
    201,713.36/278,362.14 = 111,067.43/x
  3. Step 3: Cross multiply
    201,713.36x = 278,362.14 × 111,067.43
  4. Step 4: Simplify right side
    201,713.36x = 30,916,967,499.10
  5. Step 5: Solve for x
    x = 30,916,967,499.10/201,713.36
  6. Step 6: Final answer
    x = 153,271.79

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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.