Home / 259,596.20-389,406.45-82,117.10

Finding the Fourth Proportional to 259,596.20, 389,406.45 and 82,117.10

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Solution

The fourth proportional to 259,596.20, 389,406.45 and 82,117.10 is: 123,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,596.20 : 389,406.45 = 82,117.10 : x
  2. Step 2: Convert to fraction form
    259,596.20/389,406.45 = 82,117.10/x
  3. Step 3: Cross multiply
    259,596.20x = 389,406.45 × 82,117.10
  4. Step 4: Simplify right side
    259,596.20x = 31,976,928,395.30
  5. Step 5: Solve for x
    x = 31,976,928,395.30/259,596.20
  6. Step 6: Final answer
    x = 123,179.49

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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.