Home / 131,297.28-196,809.84-61,118.88

Finding the Fourth Proportional to 131,297.28, 196,809.84 and 61,118.88

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Solution

The fourth proportional to 131,297.28, 196,809.84 and 61,118.88 is: 91,614.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,297.28 : 196,809.84 = 61,118.88 : x
  2. Step 2: Convert to fraction form
    131,297.28/196,809.84 = 61,118.88/x
  3. Step 3: Cross multiply
    131,297.28x = 196,809.84 × 61,118.88
  4. Step 4: Simplify right side
    131,297.28x = 12,028,796,993.78
  5. Step 5: Solve for x
    x = 12,028,796,993.78/131,297.28
  6. Step 6: Final answer
    x = 91,614.97

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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.