Home / 140,163.48-193,450.68-83,578.50

Finding the Fourth Proportional to 140,163.48, 193,450.68 and 83,578.50

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Solution

The fourth proportional to 140,163.48, 193,450.68 and 83,578.50 is: 115,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,163.48 : 193,450.68 = 83,578.50 : x
  2. Step 2: Convert to fraction form
    140,163.48/193,450.68 = 83,578.50/x
  3. Step 3: Cross multiply
    140,163.48x = 193,450.68 × 83,578.50
  4. Step 4: Simplify right side
    140,163.48x = 16,168,317,658.38
  5. Step 5: Solve for x
    x = 16,168,317,658.38/140,163.48
  6. Step 6: Final answer
    x = 115,353.28

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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.