Home / 199,431.35-275,217.02-108,787.72

Finding the Fourth Proportional to 199,431.35, 275,217.02 and 108,787.72

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Solution

The fourth proportional to 199,431.35, 275,217.02 and 108,787.72 is: 150,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,431.35 : 275,217.02 = 108,787.72 : x
  2. Step 2: Convert to fraction form
    199,431.35/275,217.02 = 108,787.72/x
  3. Step 3: Cross multiply
    199,431.35x = 275,217.02 × 108,787.72
  4. Step 4: Simplify right side
    199,431.35x = 29,940,231,422.95
  5. Step 5: Solve for x
    x = 29,940,231,422.95/199,431.35
  6. Step 6: Final answer
    x = 150,128.01

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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.