Home / 217,106.33-325,690.89-82,133.80

Finding the Fourth Proportional to 217,106.33, 325,690.89 and 82,133.80

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Solution

The fourth proportional to 217,106.33, 325,690.89 and 82,133.80 is: 123,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,106.33 : 325,690.89 = 82,133.80 : x
  2. Step 2: Convert to fraction form
    217,106.33/325,690.89 = 82,133.80/x
  3. Step 3: Cross multiply
    217,106.33x = 325,690.89 × 82,133.80
  4. Step 4: Simplify right side
    217,106.33x = 26,750,231,592.87
  5. Step 5: Solve for x
    x = 26,750,231,592.87/217,106.33
  6. Step 6: Final answer
    x = 123,212.58

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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.