Home / 201,983.64-278,621.82-126,400.92

Finding the Fourth Proportional to 201,983.64, 278,621.82 and 126,400.92

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Solution

The fourth proportional to 201,983.64, 278,621.82 and 126,400.92 is: 174,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,983.64 : 278,621.82 = 126,400.92 : x
  2. Step 2: Convert to fraction form
    201,983.64/278,621.82 = 126,400.92/x
  3. Step 3: Cross multiply
    201,983.64x = 278,621.82 × 126,400.92
  4. Step 4: Simplify right side
    201,983.64x = 35,218,054,380.07
  5. Step 5: Solve for x
    x = 35,218,054,380.07/201,983.64
  6. Step 6: Final answer
    x = 174,360.93

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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.