Home / 131,921.37-197,900.55-43,181.91

Finding the Fourth Proportional to 131,921.37, 197,900.55 and 43,181.91

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Solution

The fourth proportional to 131,921.37, 197,900.55 and 43,181.91 is: 64,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,921.37 : 197,900.55 = 43,181.91 : x
  2. Step 2: Convert to fraction form
    131,921.37/197,900.55 = 43,181.91/x
  3. Step 3: Cross multiply
    131,921.37x = 197,900.55 × 43,181.91
  4. Step 4: Simplify right side
    131,921.37x = 8,545,723,739.05
  5. Step 5: Solve for x
    x = 8,545,723,739.05/131,921.37
  6. Step 6: Final answer
    x = 64,778.92

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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.