Home / 211,610.75-317,464.45-91,687.61

Finding the Fourth Proportional to 211,610.75, 317,464.45 and 91,687.61

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Solution

The fourth proportional to 211,610.75, 317,464.45 and 91,687.61 is: 137,552.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,610.75 : 317,464.45 = 91,687.61 : x
  2. Step 2: Convert to fraction form
    211,610.75/317,464.45 = 91,687.61/x
  3. Step 3: Cross multiply
    211,610.75x = 317,464.45 × 91,687.61
  4. Step 4: Simplify right side
    211,610.75x = 29,107,557,244.91
  5. Step 5: Solve for x
    x = 29,107,557,244.91/211,610.75
  6. Step 6: Final answer
    x = 137,552.36

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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.