Home / 199,819.65-275,747.85-109,173.66

Finding the Fourth Proportional to 199,819.65, 275,747.85 and 109,173.66

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Solution

The fourth proportional to 199,819.65, 275,747.85 and 109,173.66 is: 150,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,819.65 : 275,747.85 = 109,173.66 : x
  2. Step 2: Convert to fraction form
    199,819.65/275,747.85 = 109,173.66/x
  3. Step 3: Cross multiply
    199,819.65x = 275,747.85 × 109,173.66
  4. Step 4: Simplify right side
    199,819.65x = 30,104,402,021.63
  5. Step 5: Solve for x
    x = 30,104,402,021.63/199,819.65
  6. Step 6: Final answer
    x = 150,657.87

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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.