Home / 193,505.73-290,370.57-81,175.87

Finding the Fourth Proportional to 193,505.73, 290,370.57 and 81,175.87

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Solution

The fourth proportional to 193,505.73, 290,370.57 and 81,175.87 is: 121,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,505.73 : 290,370.57 = 81,175.87 : x
  2. Step 2: Convert to fraction form
    193,505.73/290,370.57 = 81,175.87/x
  3. Step 3: Cross multiply
    193,505.73x = 290,370.57 × 81,175.87
  4. Step 4: Simplify right side
    193,505.73x = 23,571,083,642.15
  5. Step 5: Solve for x
    x = 23,571,083,642.15/193,505.73
  6. Step 6: Final answer
    x = 121,810.78

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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.