Home / 217,208.16-325,789.56-84,085.20

Finding the Fourth Proportional to 217,208.16, 325,789.56 and 84,085.20

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Solution

The fourth proportional to 217,208.16, 325,789.56 and 84,085.20 is: 126,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,208.16 : 325,789.56 = 84,085.20 : x
  2. Step 2: Convert to fraction form
    217,208.16/325,789.56 = 84,085.20/x
  3. Step 3: Cross multiply
    217,208.16x = 325,789.56 × 84,085.20
  4. Step 4: Simplify right side
    217,208.16x = 27,394,080,310.51
  5. Step 5: Solve for x
    x = 27,394,080,310.51/217,208.16
  6. Step 6: Final answer
    x = 126,119.02

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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.