Home / 198,401.21-273,796.95-107,757.25

Finding the Fourth Proportional to 198,401.21, 273,796.95 and 107,757.25

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Solution

The fourth proportional to 198,401.21, 273,796.95 and 107,757.25 is: 148,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,401.21 : 273,796.95 = 107,757.25 : x
  2. Step 2: Convert to fraction form
    198,401.21/273,796.95 = 107,757.25/x
  3. Step 3: Cross multiply
    198,401.21x = 273,796.95 × 107,757.25
  4. Step 4: Simplify right side
    198,401.21x = 29,503,604,482.62
  5. Step 5: Solve for x
    x = 29,503,604,482.62/198,401.21
  6. Step 6: Final answer
    x = 148,706.78

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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.