Home / 496,041.57-743,982.64-136,128.33

Finding the Fourth Proportional to 496,041.57, 743,982.64 and 136,128.33

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Solution

The fourth proportional to 496,041.57, 743,982.64 and 136,128.33 is: 204,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,041.57 : 743,982.64 = 136,128.33 : x
  2. Step 2: Convert to fraction form
    496,041.57/743,982.64 = 136,128.33/x
  3. Step 3: Cross multiply
    496,041.57x = 743,982.64 × 136,128.33
  4. Step 4: Simplify right side
    496,041.57x = 101,277,113,991.87
  5. Step 5: Solve for x
    x = 101,277,113,991.87/496,041.57
  6. Step 6: Final answer
    x = 204,170.62

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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.