Home / 263,936.81-395,911.69-86,436.65

Finding the Fourth Proportional to 263,936.81, 395,911.69 and 86,436.65

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Solution

The fourth proportional to 263,936.81, 395,911.69 and 86,436.65 is: 129,657.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,936.81 : 395,911.69 = 86,436.65 : x
  2. Step 2: Convert to fraction form
    263,936.81/395,911.69 = 86,436.65/x
  3. Step 3: Cross multiply
    263,936.81x = 395,911.69 × 86,436.65
  4. Step 4: Simplify right side
    263,936.81x = 34,221,280,953.13
  5. Step 5: Solve for x
    x = 34,221,280,953.13/263,936.81
  6. Step 6: Final answer
    x = 129,657.10

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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.