Home / 126,621.16-189,861.62-51,793.85

Finding the Fourth Proportional to 126,621.16, 189,861.62 and 51,793.85

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Solution

The fourth proportional to 126,621.16, 189,861.62 and 51,793.85 is: 77,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,621.16 : 189,861.62 = 51,793.85 : x
  2. Step 2: Convert to fraction form
    126,621.16/189,861.62 = 51,793.85/x
  3. Step 3: Cross multiply
    126,621.16x = 189,861.62 × 51,793.85
  4. Step 4: Simplify right side
    126,621.16x = 9,833,663,964.97
  5. Step 5: Solve for x
    x = 9,833,663,964.97/126,621.16
  6. Step 6: Final answer
    x = 77,662.09

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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.