Home / 216,540.64-324,837.36-91,839.52

Finding the Fourth Proportional to 216,540.64, 324,837.36 and 91,839.52

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Solution

The fourth proportional to 216,540.64, 324,837.36 and 91,839.52 is: 137,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,540.64 : 324,837.36 = 91,839.52 : x
  2. Step 2: Convert to fraction form
    216,540.64/324,837.36 = 91,839.52/x
  3. Step 3: Cross multiply
    216,540.64x = 324,837.36 × 91,839.52
  4. Step 4: Simplify right side
    216,540.64x = 29,832,907,220.47
  5. Step 5: Solve for x
    x = 29,832,907,220.47/216,540.64
  6. Step 6: Final answer
    x = 137,770.48

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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.