Home / 201,723.78-278,367.79-111,062.53

Finding the Fourth Proportional to 201,723.78, 278,367.79 and 111,062.53

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Solution

The fourth proportional to 201,723.78, 278,367.79 and 111,062.53 is: 153,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,723.78 : 278,367.79 = 111,062.53 : x
  2. Step 2: Convert to fraction form
    201,723.78/278,367.79 = 111,062.53/x
  3. Step 3: Cross multiply
    201,723.78x = 278,367.79 × 111,062.53
  4. Step 4: Simplify right side
    201,723.78x = 30,916,231,027.91
  5. Step 5: Solve for x
    x = 30,916,231,027.91/201,723.78
  6. Step 6: Final answer
    x = 153,260.22

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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.