Home / 213,249.51-319,919.38-80,130.92

Finding the Fourth Proportional to 213,249.51, 319,919.38 and 80,130.92

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Solution

The fourth proportional to 213,249.51, 319,919.38 and 80,130.92 is: 120,213.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,249.51 : 319,919.38 = 80,130.92 : x
  2. Step 2: Convert to fraction form
    213,249.51/319,919.38 = 80,130.92/x
  3. Step 3: Cross multiply
    213,249.51x = 319,919.38 × 80,130.92
  4. Step 4: Simplify right side
    213,249.51x = 25,635,433,844.58
  5. Step 5: Solve for x
    x = 25,635,433,844.58/213,249.51
  6. Step 6: Final answer
    x = 120,213.33

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1.5x scale

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.