Home / 126,601.20-189,930.60-73,983.60

Finding the Fourth Proportional to 126,601.20, 189,930.60 and 73,983.60

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Solution

The fourth proportional to 126,601.20, 189,930.60 and 73,983.60 is: 110,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,601.20 : 189,930.60 = 73,983.60 : x
  2. Step 2: Convert to fraction form
    126,601.20/189,930.60 = 73,983.60/x
  3. Step 3: Cross multiply
    126,601.20x = 189,930.60 × 73,983.60
  4. Step 4: Simplify right side
    126,601.20x = 14,051,749,538.16
  5. Step 5: Solve for x
    x = 14,051,749,538.16/126,601.20
  6. Step 6: Final answer
    x = 110,992.23

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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.