Home / 215,147.98-322,499.62-81,992.49

Finding the Fourth Proportional to 215,147.98, 322,499.62 and 81,992.49

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Solution

The fourth proportional to 215,147.98, 322,499.62 and 81,992.49 is: 122,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,147.98 : 322,499.62 = 81,992.49 : x
  2. Step 2: Convert to fraction form
    215,147.98/322,499.62 = 81,992.49/x
  3. Step 3: Cross multiply
    215,147.98x = 322,499.62 × 81,992.49
  4. Step 4: Simplify right side
    215,147.98x = 26,442,546,867.85
  5. Step 5: Solve for x
    x = 26,442,546,867.85/215,147.98
  6. Step 6: Final answer
    x = 122,904.00

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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.