Home / 217,120.07-325,773.06-90,789.84

Finding the Fourth Proportional to 217,120.07, 325,773.06 and 90,789.84

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Solution

The fourth proportional to 217,120.07, 325,773.06 and 90,789.84 is: 136,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,120.07 : 325,773.06 = 90,789.84 : x
  2. Step 2: Convert to fraction form
    217,120.07/325,773.06 = 90,789.84/x
  3. Step 3: Cross multiply
    217,120.07x = 325,773.06 × 90,789.84
  4. Step 4: Simplify right side
    217,120.07x = 29,576,883,653.25
  5. Step 5: Solve for x
    x = 29,576,883,653.25/217,120.07
  6. Step 6: Final answer
    x = 136,223.63

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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.