Home / 193,481.32-290,334.04-81,151.52

Finding the Fourth Proportional to 193,481.32, 290,334.04 and 81,151.52

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Solution

The fourth proportional to 193,481.32, 290,334.04 and 81,151.52 is: 121,774.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,481.32 : 290,334.04 = 81,151.52 : x
  2. Step 2: Convert to fraction form
    193,481.32/290,334.04 = 81,151.52/x
  3. Step 3: Cross multiply
    193,481.32x = 290,334.04 × 81,151.52
  4. Step 4: Simplify right side
    193,481.32x = 23,561,048,653.74
  5. Step 5: Solve for x
    x = 23,561,048,653.74/193,481.32
  6. Step 6: Final answer
    x = 121,774.28

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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.