Home / 137,906.04-190,310.00-80,584.77

Finding the Fourth Proportional to 137,906.04, 190,310.00 and 80,584.77

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Solution

The fourth proportional to 137,906.04, 190,310.00 and 80,584.77 is: 111,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,906.04 : 190,310.00 = 80,584.77 : x
  2. Step 2: Convert to fraction form
    137,906.04/190,310.00 = 80,584.77/x
  3. Step 3: Cross multiply
    137,906.04x = 190,310.00 × 80,584.77
  4. Step 4: Simplify right side
    137,906.04x = 15,336,087,175.78
  5. Step 5: Solve for x
    x = 15,336,087,175.78/137,906.04
  6. Step 6: Final answer
    x = 111,206.78

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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.