Home / 126,604.20-189,935.10-73,986.60

Finding the Fourth Proportional to 126,604.20, 189,935.10 and 73,986.60

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Solution

The fourth proportional to 126,604.20, 189,935.10 and 73,986.60 is: 110,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,604.20 : 189,935.10 = 73,986.60 : x
  2. Step 2: Convert to fraction form
    126,604.20/189,935.10 = 73,986.60/x
  3. Step 3: Cross multiply
    126,604.20x = 189,935.10 × 73,986.60
  4. Step 4: Simplify right side
    126,604.20x = 14,052,652,269.66
  5. Step 5: Solve for x
    x = 14,052,652,269.66/126,604.20
  6. Step 6: Final answer
    x = 110,996.73

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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.