Home / 193,639.60-290,371.92-68,983.84

Finding the Fourth Proportional to 193,639.60, 290,371.92 and 68,983.84

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Solution

The fourth proportional to 193,639.60, 290,371.92 and 68,983.84 is: 103,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,639.60 : 290,371.92 = 68,983.84 : x
  2. Step 2: Convert to fraction form
    193,639.60/290,371.92 = 68,983.84/x
  3. Step 3: Cross multiply
    193,639.60x = 290,371.92 × 68,983.84
  4. Step 4: Simplify right side
    193,639.60x = 20,030,970,069.77
  5. Step 5: Solve for x
    x = 20,030,970,069.77/193,639.60
  6. Step 6: Final answer
    x = 103,444.60

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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.