Home / 131,873.28-197,809.86-87,586.48

Finding the Fourth Proportional to 131,873.28, 197,809.86 and 87,586.48

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Solution

The fourth proportional to 131,873.28, 197,809.86 and 87,586.48 is: 131,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,873.28 : 197,809.86 = 87,586.48 : x
  2. Step 2: Convert to fraction form
    131,873.28/197,809.86 = 87,586.48/x
  3. Step 3: Cross multiply
    131,873.28x = 197,809.86 × 87,586.48
  4. Step 4: Simplify right side
    131,873.28x = 17,325,469,346.69
  5. Step 5: Solve for x
    x = 17,325,469,346.69/131,873.28
  6. Step 6: Final answer
    x = 131,379.68

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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.