Home / 263,953.10-395,846.28-86,419.32

Finding the Fourth Proportional to 263,953.10, 395,846.28 and 86,419.32

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Solution

The fourth proportional to 263,953.10, 395,846.28 and 86,419.32 is: 129,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,953.10 : 395,846.28 = 86,419.32 : x
  2. Step 2: Convert to fraction form
    263,953.10/395,846.28 = 86,419.32/x
  3. Step 3: Cross multiply
    263,953.10x = 395,846.28 × 86,419.32
  4. Step 4: Simplify right side
    263,953.10x = 34,208,766,342.13
  5. Step 5: Solve for x
    x = 34,208,766,342.13/263,953.10
  6. Step 6: Final answer
    x = 129,601.69

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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.