Home / 155,984.86-215,249.43-88,012.54

Finding the Fourth Proportional to 155,984.86, 215,249.43 and 88,012.54

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Solution

The fourth proportional to 155,984.86, 215,249.43 and 88,012.54 is: 121,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,984.86 : 215,249.43 = 88,012.54 : x
  2. Step 2: Convert to fraction form
    155,984.86/215,249.43 = 88,012.54/x
  3. Step 3: Cross multiply
    155,984.86x = 215,249.43 × 88,012.54
  4. Step 4: Simplify right side
    155,984.86x = 18,944,649,067.85
  5. Step 5: Solve for x
    x = 18,944,649,067.85/155,984.86
  6. Step 6: Final answer
    x = 121,451.85

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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.