Home / 147,799.38-203,963.16-80,731.38

Finding the Fourth Proportional to 147,799.38, 203,963.16 and 80,731.38

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Solution

The fourth proportional to 147,799.38, 203,963.16 and 80,731.38 is: 111,409.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,799.38 : 203,963.16 = 80,731.38 : x
  2. Step 2: Convert to fraction form
    147,799.38/203,963.16 = 80,731.38/x
  3. Step 3: Cross multiply
    147,799.38x = 203,963.16 × 80,731.38
  4. Step 4: Simplify right side
    147,799.38x = 16,466,227,375.96
  5. Step 5: Solve for x
    x = 16,466,227,375.96/147,799.38
  6. Step 6: Final answer
    x = 111,409.31

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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.