Home / 193,003.21-289,406.08-80,652.76

Finding the Fourth Proportional to 193,003.21, 289,406.08 and 80,652.76

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Solution

The fourth proportional to 193,003.21, 289,406.08 and 80,652.76 is: 120,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,003.21 : 289,406.08 = 80,652.76 : x
  2. Step 2: Convert to fraction form
    193,003.21/289,406.08 = 80,652.76/x
  3. Step 3: Cross multiply
    193,003.21x = 289,406.08 × 80,652.76
  4. Step 4: Simplify right side
    193,003.21x = 23,341,399,112.78
  5. Step 5: Solve for x
    x = 23,341,399,112.78/193,003.21
  6. Step 6: Final answer
    x = 120,937.88

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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.