Home / 98,205.75-135,517.56-57,910.28

Finding the Fourth Proportional to 98,205.75, 135,517.56 and 57,910.28

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Solution

The fourth proportional to 98,205.75, 135,517.56 and 57,910.28 is: 79,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,205.75 : 135,517.56 = 57,910.28 : x
  2. Step 2: Convert to fraction form
    98,205.75/135,517.56 = 57,910.28/x
  3. Step 3: Cross multiply
    98,205.75x = 135,517.56 × 57,910.28
  4. Step 4: Simplify right side
    98,205.75x = 7,847,858,949.77
  5. Step 5: Solve for x
    x = 7,847,858,949.77/98,205.75
  6. Step 6: Final answer
    x = 79,912.42

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1.5x scale

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.