Home / 126,898.44-189,984.78-85,270.92

Finding the Fourth Proportional to 126,898.44, 189,984.78 and 85,270.92

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Solution

The fourth proportional to 126,898.44, 189,984.78 and 85,270.92 is: 127,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,898.44 : 189,984.78 = 85,270.92 : x
  2. Step 2: Convert to fraction form
    126,898.44/189,984.78 = 85,270.92/x
  3. Step 3: Cross multiply
    126,898.44x = 189,984.78 × 85,270.92
  4. Step 4: Simplify right side
    126,898.44x = 16,200,176,976.60
  5. Step 5: Solve for x
    x = 16,200,176,976.60/126,898.44
  6. Step 6: Final answer
    x = 127,662.54

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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.