Home / 199,965.11-299,947.96-80,076.04

Finding the Fourth Proportional to 199,965.11, 299,947.96 and 80,076.04

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Solution

The fourth proportional to 199,965.11, 299,947.96 and 80,076.04 is: 120,114.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,965.11 : 299,947.96 = 80,076.04 : x
  2. Step 2: Convert to fraction form
    199,965.11/299,947.96 = 80,076.04/x
  3. Step 3: Cross multiply
    199,965.11x = 299,947.96 × 80,076.04
  4. Step 4: Simplify right side
    199,965.11x = 24,018,645,880.31
  5. Step 5: Solve for x
    x = 24,018,645,880.31/199,965.11
  6. Step 6: Final answer
    x = 120,114.19

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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.