Home / 127,356.20-190,815.60-82,960.10

Finding the Fourth Proportional to 127,356.20, 190,815.60 and 82,960.10

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Solution

The fourth proportional to 127,356.20, 190,815.60 and 82,960.10 is: 124,297.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,356.20 : 190,815.60 = 82,960.10 : x
  2. Step 2: Convert to fraction form
    127,356.20/190,815.60 = 82,960.10/x
  3. Step 3: Cross multiply
    127,356.20x = 190,815.60 × 82,960.10
  4. Step 4: Simplify right side
    127,356.20x = 15,830,081,257.56
  5. Step 5: Solve for x
    x = 15,830,081,257.56/127,356.20
  6. Step 6: Final answer
    x = 124,297.69

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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.