Home / 131,217.61-196,709.20-51,236.97

Finding the Fourth Proportional to 131,217.61, 196,709.20 and 51,236.97

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Solution

The fourth proportional to 131,217.61, 196,709.20 and 51,236.97 is: 76,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,217.61 : 196,709.20 = 51,236.97 : x
  2. Step 2: Convert to fraction form
    131,217.61/196,709.20 = 51,236.97/x
  3. Step 3: Cross multiply
    131,217.61x = 196,709.20 × 51,236.97
  4. Step 4: Simplify right side
    131,217.61x = 10,078,783,664.58
  5. Step 5: Solve for x
    x = 10,078,783,664.58/131,217.61
  6. Step 6: Final answer
    x = 76,809.69

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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.