Home / 263,936.16-395,964.72-86,453.28

Finding the Fourth Proportional to 263,936.16, 395,964.72 and 86,453.28

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Solution

The fourth proportional to 263,936.16, 395,964.72 and 86,453.28 is: 129,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,936.16 : 395,964.72 = 86,453.28 : x
  2. Step 2: Convert to fraction form
    263,936.16/395,964.72 = 86,453.28/x
  3. Step 3: Cross multiply
    263,936.16x = 395,964.72 × 86,453.28
  4. Step 4: Simplify right side
    263,936.16x = 34,232,448,808.28
  5. Step 5: Solve for x
    x = 34,232,448,808.28/263,936.16
  6. Step 6: Final answer
    x = 129,699.73

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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.