Home / 193,172.20-289,758.30-133,037.80

Finding the Fourth Proportional to 193,172.20, 289,758.30 and 133,037.80

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Solution

The fourth proportional to 193,172.20, 289,758.30 and 133,037.80 is: 199,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,172.20 : 289,758.30 = 133,037.80 : x
  2. Step 2: Convert to fraction form
    193,172.20/289,758.30 = 133,037.80/x
  3. Step 3: Cross multiply
    193,172.20x = 289,758.30 × 133,037.80
  4. Step 4: Simplify right side
    193,172.20x = 38,548,806,763.74
  5. Step 5: Solve for x
    x = 38,548,806,763.74/193,172.20
  6. Step 6: Final answer
    x = 199,556.70

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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.