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Finding the Fourth Proportional to 147,797.88, 203,961.09 and 80,729.88

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Solution

The fourth proportional to 147,797.88, 203,961.09 and 80,729.88 is: 111,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,797.88 : 203,961.09 = 80,729.88 : x
  2. Step 2: Convert to fraction form
    147,797.88/203,961.09 = 80,729.88/x
  3. Step 3: Cross multiply
    147,797.88x = 203,961.09 × 80,729.88
  4. Step 4: Simplify right side
    147,797.88x = 16,465,754,320.37
  5. Step 5: Solve for x
    x = 16,465,754,320.37/147,797.88
  6. Step 6: Final answer
    x = 111,407.24

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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.