Home / 259,012.14-388,540.20-72,023.64

Finding the Fourth Proportional to 259,012.14, 388,540.20 and 72,023.64

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Solution

The fourth proportional to 259,012.14, 388,540.20 and 72,023.64 is: 108,041.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,012.14 : 388,540.20 = 72,023.64 : x
  2. Step 2: Convert to fraction form
    259,012.14/388,540.20 = 72,023.64/x
  3. Step 3: Cross multiply
    259,012.14x = 388,540.20 × 72,023.64
  4. Step 4: Simplify right side
    259,012.14x = 27,984,079,490.33
  5. Step 5: Solve for x
    x = 27,984,079,490.33/259,012.14
  6. Step 6: Final answer
    x = 108,041.57

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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.