Home / 201,943.74-278,670.97-111,299.42

Finding the Fourth Proportional to 201,943.74, 278,670.97 and 111,299.42

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Solution

The fourth proportional to 201,943.74, 278,670.97 and 111,299.42 is: 153,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,943.74 : 278,670.97 = 111,299.42 : x
  2. Step 2: Convert to fraction form
    201,943.74/278,670.97 = 111,299.42/x
  3. Step 3: Cross multiply
    201,943.74x = 278,670.97 × 111,299.42
  4. Step 4: Simplify right side
    201,943.74x = 31,015,917,331.84
  5. Step 5: Solve for x
    x = 31,015,917,331.84/201,943.74
  6. Step 6: Final answer
    x = 153,586.92

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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.