Home / 201,705.36-278,351.10-111,059.43

Finding the Fourth Proportional to 201,705.36, 278,351.10 and 111,059.43

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Solution

The fourth proportional to 201,705.36, 278,351.10 and 111,059.43 is: 153,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,705.36 : 278,351.10 = 111,059.43 : x
  2. Step 2: Convert to fraction form
    201,705.36/278,351.10 = 111,059.43/x
  3. Step 3: Cross multiply
    201,705.36x = 278,351.10 × 111,059.43
  4. Step 4: Simplify right side
    201,705.36x = 30,913,514,505.87
  5. Step 5: Solve for x
    x = 30,913,514,505.87/201,705.36
  6. Step 6: Final answer
    x = 153,260.75

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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.