Home / 263,563.38-395,369.37-86,071.32

Finding the Fourth Proportional to 263,563.38, 395,369.37 and 86,071.32

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Solution

The fourth proportional to 263,563.38, 395,369.37 and 86,071.32 is: 129,114.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,563.38 : 395,369.37 = 86,071.32 : x
  2. Step 2: Convert to fraction form
    263,563.38/395,369.37 = 86,071.32/x
  3. Step 3: Cross multiply
    263,563.38x = 395,369.37 × 86,071.32
  4. Step 4: Simplify right side
    263,563.38x = 34,029,963,563.47
  5. Step 5: Solve for x
    x = 34,029,963,563.47/263,563.38
  6. Step 6: Final answer
    x = 129,114.92

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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.