Home / 127,126.20-190,470.60-82,730.10

Finding the Fourth Proportional to 127,126.20, 190,470.60 and 82,730.10

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Solution

The fourth proportional to 127,126.20, 190,470.60 and 82,730.10 is: 123,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,126.20 : 190,470.60 = 82,730.10 : x
  2. Step 2: Convert to fraction form
    127,126.20/190,470.60 = 82,730.10/x
  3. Step 3: Cross multiply
    127,126.20x = 190,470.60 × 82,730.10
  4. Step 4: Simplify right side
    127,126.20x = 15,757,651,785.06
  5. Step 5: Solve for x
    x = 15,757,651,785.06/127,126.20
  6. Step 6: Final answer
    x = 123,952.83

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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.