Home / 263,928.02-395,851.92-86,431.10

Finding the Fourth Proportional to 263,928.02, 395,851.92 and 86,431.10

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Solution

The fourth proportional to 263,928.02, 395,851.92 and 86,431.10 is: 129,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,928.02 : 395,851.92 = 86,431.10 : x
  2. Step 2: Convert to fraction form
    263,928.02/395,851.92 = 86,431.10/x
  3. Step 3: Cross multiply
    263,928.02x = 395,851.92 × 86,431.10
  4. Step 4: Simplify right side
    263,928.02x = 34,213,914,903.45
  5. Step 5: Solve for x
    x = 34,213,914,903.45/263,928.02
  6. Step 6: Final answer
    x = 129,633.51

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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.