Home / 193,125.10-289,716.45-68,456.30

Finding the Fourth Proportional to 193,125.10, 289,716.45 and 68,456.30

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Solution

The fourth proportional to 193,125.10, 289,716.45 and 68,456.30 is: 102,694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,125.10 : 289,716.45 = 68,456.30 : x
  2. Step 2: Convert to fraction form
    193,125.10/289,716.45 = 68,456.30/x
  3. Step 3: Cross multiply
    193,125.10x = 289,716.45 × 68,456.30
  4. Step 4: Simplify right side
    193,125.10x = 19,832,916,216.14
  5. Step 5: Solve for x
    x = 19,832,916,216.14/193,125.10
  6. Step 6: Final answer
    x = 102,694.66

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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.