Home / 212,418.48-293,103.19-121,757.78

Finding the Fourth Proportional to 212,418.48, 293,103.19 and 121,757.78

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Solution

The fourth proportional to 212,418.48, 293,103.19 and 121,757.78 is: 168,006.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,418.48 : 293,103.19 = 121,757.78 : x
  2. Step 2: Convert to fraction form
    212,418.48/293,103.19 = 121,757.78/x
  3. Step 3: Cross multiply
    212,418.48x = 293,103.19 × 121,757.78
  4. Step 4: Simplify right side
    212,418.48x = 35,687,594,610.27
  5. Step 5: Solve for x
    x = 35,687,594,610.27/212,418.48
  6. Step 6: Final answer
    x = 168,006.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.