Home / 259,168.47-388,726.42-69,604.21

Finding the Fourth Proportional to 259,168.47, 388,726.42 and 69,604.21

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Solution

The fourth proportional to 259,168.47, 388,726.42 and 69,604.21 is: 104,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,168.47 : 388,726.42 = 69,604.21 : x
  2. Step 2: Convert to fraction form
    259,168.47/388,726.42 = 69,604.21/x
  3. Step 3: Cross multiply
    259,168.47x = 388,726.42 × 69,604.21
  4. Step 4: Simplify right side
    259,168.47x = 27,056,993,426.60
  5. Step 5: Solve for x
    x = 27,056,993,426.60/259,168.47
  6. Step 6: Final answer
    x = 104,399.25

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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.