Home / 279,942.82-419,665.59-109,125.16

Finding the Fourth Proportional to 279,942.82, 419,665.59 and 109,125.16

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Solution

The fourth proportional to 279,942.82, 419,665.59 and 109,125.16 is: 163,590.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,942.82 : 419,665.59 = 109,125.16 : x
  2. Step 2: Convert to fraction form
    279,942.82/419,665.59 = 109,125.16/x
  3. Step 3: Cross multiply
    279,942.82x = 419,665.59 × 109,125.16
  4. Step 4: Simplify right side
    279,942.82x = 45,796,073,606.08
  5. Step 5: Solve for x
    x = 45,796,073,606.08/279,942.82
  6. Step 6: Final answer
    x = 163,590.81

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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.