Home / 263,610.59-395,478.45-86,117.31

Finding the Fourth Proportional to 263,610.59, 395,478.45 and 86,117.31

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Solution

The fourth proportional to 263,610.59, 395,478.45 and 86,117.31 is: 129,196.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,610.59 : 395,478.45 = 86,117.31 : x
  2. Step 2: Convert to fraction form
    263,610.59/395,478.45 = 86,117.31/x
  3. Step 3: Cross multiply
    263,610.59x = 395,478.45 × 86,117.31
  4. Step 4: Simplify right side
    263,610.59x = 34,057,540,276.97
  5. Step 5: Solve for x
    x = 34,057,540,276.97/263,610.59
  6. Step 6: Final answer
    x = 129,196.41

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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.