Home / 199,689.45-275,572.85-109,043.70

Finding the Fourth Proportional to 199,689.45, 275,572.85 and 109,043.70

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Solution

The fourth proportional to 199,689.45, 275,572.85 and 109,043.70 is: 150,481.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,689.45 : 275,572.85 = 109,043.70 : x
  2. Step 2: Convert to fraction form
    199,689.45/275,572.85 = 109,043.70/x
  3. Step 3: Cross multiply
    199,689.45x = 275,572.85 × 109,043.70
  4. Step 4: Simplify right side
    199,689.45x = 30,049,482,638.33
  5. Step 5: Solve for x
    x = 30,049,482,638.33/199,689.45
  6. Step 6: Final answer
    x = 150,481.07

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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.