Home / 193,599.78-290,511.75-81,270.18

Finding the Fourth Proportional to 193,599.78, 290,511.75 and 81,270.18

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Solution

The fourth proportional to 193,599.78, 290,511.75 and 81,270.18 is: 121,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,599.78 : 290,511.75 = 81,270.18 : x
  2. Step 2: Convert to fraction form
    193,599.78/290,511.75 = 81,270.18/x
  3. Step 3: Cross multiply
    193,599.78x = 290,511.75 × 81,270.18
  4. Step 4: Simplify right side
    193,599.78x = 23,609,942,214.62
  5. Step 5: Solve for x
    x = 23,609,942,214.62/193,599.78
  6. Step 6: Final answer
    x = 121,952.32

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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.