Home / 127,080.78-190,621.14-43,974.78

Finding the Fourth Proportional to 127,080.78, 190,621.14 and 43,974.78

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Solution

The fourth proportional to 127,080.78, 190,621.14 and 43,974.78 is: 65,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,080.78 : 190,621.14 = 43,974.78 : x
  2. Step 2: Convert to fraction form
    127,080.78/190,621.14 = 43,974.78/x
  3. Step 3: Cross multiply
    127,080.78x = 190,621.14 × 43,974.78
  4. Step 4: Simplify right side
    127,080.78x = 8,382,522,694.85
  5. Step 5: Solve for x
    x = 8,382,522,694.85/127,080.78
  6. Step 6: Final answer
    x = 65,962.16

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1.5x scale

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.