Home / 213,431.83-320,147.61-63,777.12

Finding the Fourth Proportional to 213,431.83, 320,147.61 and 63,777.12

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Solution

The fourth proportional to 213,431.83, 320,147.61 and 63,777.12 is: 95,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,431.83 : 320,147.61 = 63,777.12 : x
  2. Step 2: Convert to fraction form
    213,431.83/320,147.61 = 63,777.12/x
  3. Step 3: Cross multiply
    213,431.83x = 320,147.61 × 63,777.12
  4. Step 4: Simplify right side
    213,431.83x = 20,418,092,540.68
  5. Step 5: Solve for x
    x = 20,418,092,540.68/213,431.83
  6. Step 6: Final answer
    x = 95,665.64

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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.