Home / 193,137.54-289,693.61-66,748.38

Finding the Fourth Proportional to 193,137.54, 289,693.61 and 66,748.38

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Solution

The fourth proportional to 193,137.54, 289,693.61 and 66,748.38 is: 100,118.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,137.54 : 289,693.61 = 66,748.38 : x
  2. Step 2: Convert to fraction form
    193,137.54/289,693.61 = 66,748.38/x
  3. Step 3: Cross multiply
    193,137.54x = 289,693.61 × 66,748.38
  4. Step 4: Simplify right side
    193,137.54x = 19,336,579,163.85
  5. Step 5: Solve for x
    x = 19,336,579,163.85/193,137.54
  6. Step 6: Final answer
    x = 100,118.18

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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.