Home / 192,887.19-289,190.59-80,599.55

Finding the Fourth Proportional to 192,887.19, 289,190.59 and 80,599.55

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Solution

The fourth proportional to 192,887.19, 289,190.59 and 80,599.55 is: 120,840.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,887.19 : 289,190.59 = 80,599.55 : x
  2. Step 2: Convert to fraction form
    192,887.19/289,190.59 = 80,599.55/x
  3. Step 3: Cross multiply
    192,887.19x = 289,190.59 × 80,599.55
  4. Step 4: Simplify right side
    192,887.19x = 23,308,629,770.78
  5. Step 5: Solve for x
    x = 23,308,629,770.78/192,887.19
  6. Step 6: Final answer
    x = 120,840.73

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1.5x scale

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.