Home / 126,738.20-190,107.30-125,863.40

Finding the Fourth Proportional to 126,738.20, 190,107.30 and 125,863.40

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Solution

The fourth proportional to 126,738.20, 190,107.30 and 125,863.40 is: 188,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,738.20 : 190,107.30 = 125,863.40 : x
  2. Step 2: Convert to fraction form
    126,738.20/190,107.30 = 125,863.40/x
  3. Step 3: Cross multiply
    126,738.20x = 190,107.30 × 125,863.40
  4. Step 4: Simplify right side
    126,738.20x = 23,927,551,142.82
  5. Step 5: Solve for x
    x = 23,927,551,142.82/126,738.20
  6. Step 6: Final answer
    x = 188,795.10

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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.