Home / 201,772.97-278,380.05-130,200.56

Finding the Fourth Proportional to 201,772.97, 278,380.05 and 130,200.56

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Solution

The fourth proportional to 201,772.97, 278,380.05 and 130,200.56 is: 179,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,772.97 : 278,380.05 = 130,200.56 : x
  2. Step 2: Convert to fraction form
    201,772.97/278,380.05 = 130,200.56/x
  3. Step 3: Cross multiply
    201,772.97x = 278,380.05 × 130,200.56
  4. Step 4: Simplify right side
    201,772.97x = 36,245,238,402.83
  5. Step 5: Solve for x
    x = 36,245,238,402.83/201,772.97
  6. Step 6: Final answer
    x = 179,633.77

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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.