Home / 245,023.45-338,132.39-137,593.55

Finding the Fourth Proportional to 245,023.45, 338,132.39 and 137,593.55

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Solution

The fourth proportional to 245,023.45, 338,132.39 and 137,593.55 is: 189,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,023.45 : 338,132.39 = 137,593.55 : x
  2. Step 2: Convert to fraction form
    245,023.45/338,132.39 = 137,593.55/x
  3. Step 3: Cross multiply
    245,023.45x = 338,132.39 × 137,593.55
  4. Step 4: Simplify right side
    245,023.45x = 46,524,836,067.45
  5. Step 5: Solve for x
    x = 46,524,836,067.45/245,023.45
  6. Step 6: Final answer
    x = 189,879.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.