Home / 201,943.67-278,670.89-111,299.36

Finding the Fourth Proportional to 201,943.67, 278,670.89 and 111,299.36

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Solution

The fourth proportional to 201,943.67, 278,670.89 and 111,299.36 is: 153,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,943.67 : 278,670.89 = 111,299.36 : x
  2. Step 2: Convert to fraction form
    201,943.67/278,670.89 = 111,299.36/x
  3. Step 3: Cross multiply
    201,943.67x = 278,670.89 × 111,299.36
  4. Step 4: Simplify right side
    201,943.67x = 31,015,889,757.78
  5. Step 5: Solve for x
    x = 31,015,889,757.78/201,943.67
  6. Step 6: Final answer
    x = 153,586.84

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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.