Home / 193,721.70-290,536.29-81,404.04

Finding the Fourth Proportional to 193,721.70, 290,536.29 and 81,404.04

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Solution

The fourth proportional to 193,721.70, 290,536.29 and 81,404.04 is: 122,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,721.70 : 290,536.29 = 81,404.04 : x
  2. Step 2: Convert to fraction form
    193,721.70/290,536.29 = 81,404.04/x
  3. Step 3: Cross multiply
    193,721.70x = 290,536.29 × 81,404.04
  4. Step 4: Simplify right side
    193,721.70x = 23,650,827,772.61
  5. Step 5: Solve for x
    x = 23,650,827,772.61/193,721.70
  6. Step 6: Final answer
    x = 122,086.62

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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.