Home / 200,725.75-301,205.27-89,917.75

Finding the Fourth Proportional to 200,725.75, 301,205.27 and 89,917.75

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Solution

The fourth proportional to 200,725.75, 301,205.27 and 89,917.75 is: 134,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,725.75 : 301,205.27 = 89,917.75 : x
  2. Step 2: Convert to fraction form
    200,725.75/301,205.27 = 89,917.75/x
  3. Step 3: Cross multiply
    200,725.75x = 301,205.27 × 89,917.75
  4. Step 4: Simplify right side
    200,725.75x = 27,083,700,166.54
  5. Step 5: Solve for x
    x = 27,083,700,166.54/200,725.75
  6. Step 6: Final answer
    x = 134,928.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.