Home / 201,986.44-278,753.78-111,341.96

Finding the Fourth Proportional to 201,986.44, 278,753.78 and 111,341.96

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Solution

The fourth proportional to 201,986.44, 278,753.78 and 111,341.96 is: 153,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,986.44 : 278,753.78 = 111,341.96 : x
  2. Step 2: Convert to fraction form
    201,986.44/278,753.78 = 111,341.96/x
  3. Step 3: Cross multiply
    201,986.44x = 278,753.78 × 111,341.96
  4. Step 4: Simplify right side
    201,986.44x = 31,036,992,222.61
  5. Step 5: Solve for x
    x = 31,036,992,222.61/201,986.44
  6. Step 6: Final answer
    x = 153,658.79

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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.