Home / 216,627.12-324,910.62-66,872.34

Finding the Fourth Proportional to 216,627.12, 324,910.62 and 66,872.34

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Solution

The fourth proportional to 216,627.12, 324,910.62 and 66,872.34 is: 100,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,627.12 : 324,910.62 = 66,872.34 : x
  2. Step 2: Convert to fraction form
    216,627.12/324,910.62 = 66,872.34/x
  3. Step 3: Cross multiply
    216,627.12x = 324,910.62 × 66,872.34
  4. Step 4: Simplify right side
    216,627.12x = 21,727,533,450.25
  5. Step 5: Solve for x
    x = 21,727,533,450.25/216,627.12
  6. Step 6: Final answer
    x = 100,299.23

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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.