Home / 211,446.09-317,326.82-85,087.46

Finding the Fourth Proportional to 211,446.09, 317,326.82 and 85,087.46

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Solution

The fourth proportional to 211,446.09, 317,326.82 and 85,087.46 is: 127,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,446.09 : 317,326.82 = 85,087.46 : x
  2. Step 2: Convert to fraction form
    211,446.09/317,326.82 = 85,087.46/x
  3. Step 3: Cross multiply
    211,446.09x = 317,326.82 × 85,087.46
  4. Step 4: Simplify right side
    211,446.09x = 27,000,533,103.68
  5. Step 5: Solve for x
    x = 27,000,533,103.68/211,446.09
  6. Step 6: Final answer
    x = 127,694.64

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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.