Home / 201,961.49-278,694.27-111,318.17

Finding the Fourth Proportional to 201,961.49, 278,694.27 and 111,318.17

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Solution

The fourth proportional to 201,961.49, 278,694.27 and 111,318.17 is: 153,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,961.49 : 278,694.27 = 111,318.17 : x
  2. Step 2: Convert to fraction form
    201,961.49/278,694.27 = 111,318.17/x
  3. Step 3: Cross multiply
    201,961.49x = 278,694.27 × 111,318.17
  4. Step 4: Simplify right side
    201,961.49x = 31,023,734,732.41
  5. Step 5: Solve for x
    x = 31,023,734,732.41/201,961.49
  6. Step 6: Final answer
    x = 153,612.13

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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.