Home / 212,164.48-318,067.98-92,131.12

Finding the Fourth Proportional to 212,164.48, 318,067.98 and 92,131.12

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Solution

The fourth proportional to 212,164.48, 318,067.98 and 92,131.12 is: 138,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,164.48 : 318,067.98 = 92,131.12 : x
  2. Step 2: Convert to fraction form
    212,164.48/318,067.98 = 92,131.12/x
  3. Step 3: Cross multiply
    212,164.48x = 318,067.98 × 92,131.12
  4. Step 4: Simplify right side
    212,164.48x = 29,303,959,233.54
  5. Step 5: Solve for x
    x = 29,303,959,233.54/212,164.48
  6. Step 6: Final answer
    x = 138,119.06

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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.