Home / 220,781.88-331,196.40-94,435.20

Finding the Fourth Proportional to 220,781.88, 331,196.40 and 94,435.20

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Solution

The fourth proportional to 220,781.88, 331,196.40 and 94,435.20 is: 141,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,781.88 : 331,196.40 = 94,435.20 : x
  2. Step 2: Convert to fraction form
    220,781.88/331,196.40 = 94,435.20/x
  3. Step 3: Cross multiply
    220,781.88x = 331,196.40 × 94,435.20
  4. Step 4: Simplify right side
    220,781.88x = 31,276,598,273.28
  5. Step 5: Solve for x
    x = 31,276,598,273.28/220,781.88
  6. Step 6: Final answer
    x = 141,662.89

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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.