Home / 140,440.14-193,788.96-83,839.50

Finding the Fourth Proportional to 140,440.14, 193,788.96 and 83,839.50

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Solution

The fourth proportional to 140,440.14, 193,788.96 and 83,839.50 is: 115,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,440.14 : 193,788.96 = 83,839.50 : x
  2. Step 2: Convert to fraction form
    140,440.14/193,788.96 = 83,839.50/x
  3. Step 3: Cross multiply
    140,440.14x = 193,788.96 × 83,839.50
  4. Step 4: Simplify right side
    140,440.14x = 16,247,169,511.92
  5. Step 5: Solve for x
    x = 16,247,169,511.92/140,440.14
  6. Step 6: Final answer
    x = 115,687.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.