Home / 225,961.03-338,941.41-85,719.66

Finding the Fourth Proportional to 225,961.03, 338,941.41 and 85,719.66

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Solution

The fourth proportional to 225,961.03, 338,941.41 and 85,719.66 is: 128,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,961.03 : 338,941.41 = 85,719.66 : x
  2. Step 2: Convert to fraction form
    225,961.03/338,941.41 = 85,719.66/x
  3. Step 3: Cross multiply
    225,961.03x = 338,941.41 × 85,719.66
  4. Step 4: Simplify right side
    225,961.03x = 29,053,942,425.12
  5. Step 5: Solve for x
    x = 29,053,942,425.12/225,961.03
  6. Step 6: Final answer
    x = 128,579.44

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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.