Home / 126,921.94-190,470.39-43,815.94

Finding the Fourth Proportional to 126,921.94, 190,470.39 and 43,815.94

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Solution

The fourth proportional to 126,921.94, 190,470.39 and 43,815.94 is: 65,754.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,921.94 : 190,470.39 = 43,815.94 : x
  2. Step 2: Convert to fraction form
    126,921.94/190,470.39 = 43,815.94/x
  3. Step 3: Cross multiply
    126,921.94x = 190,470.39 × 43,815.94
  4. Step 4: Simplify right side
    126,921.94x = 8,345,638,539.53
  5. Step 5: Solve for x
    x = 8,345,638,539.53/126,921.94
  6. Step 6: Final answer
    x = 65,754.11

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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.