Home / 138,268.43-207,356.51-54,006.74

Finding the Fourth Proportional to 138,268.43, 207,356.51 and 54,006.74

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Solution

The fourth proportional to 138,268.43, 207,356.51 and 54,006.74 is: 80,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,268.43 : 207,356.51 = 54,006.74 : x
  2. Step 2: Convert to fraction form
    138,268.43/207,356.51 = 54,006.74/x
  3. Step 3: Cross multiply
    138,268.43x = 207,356.51 × 54,006.74
  4. Step 4: Simplify right side
    138,268.43x = 11,198,647,816.06
  5. Step 5: Solve for x
    x = 11,198,647,816.06/138,268.43
  6. Step 6: Final answer
    x = 80,992.08

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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.