Home / 193,764.24-290,701.94-81,386.66

Finding the Fourth Proportional to 193,764.24, 290,701.94 and 81,386.66

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Solution

The fourth proportional to 193,764.24, 290,701.94 and 81,386.66 is: 122,103.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,764.24 : 290,701.94 = 81,386.66 : x
  2. Step 2: Convert to fraction form
    193,764.24/290,701.94 = 81,386.66/x
  3. Step 3: Cross multiply
    193,764.24x = 290,701.94 × 81,386.66
  4. Step 4: Simplify right side
    193,764.24x = 23,659,259,952.12
  5. Step 5: Solve for x
    x = 23,659,259,952.12/193,764.24
  6. Step 6: Final answer
    x = 122,103.34

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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.