Home / 126,917.20-190,375.80-119,141.20

Finding the Fourth Proportional to 126,917.20, 190,375.80 and 119,141.20

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Solution

The fourth proportional to 126,917.20, 190,375.80 and 119,141.20 is: 178,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,917.20 : 190,375.80 = 119,141.20 : x
  2. Step 2: Convert to fraction form
    126,917.20/190,375.80 = 119,141.20/x
  3. Step 3: Cross multiply
    126,917.20x = 190,375.80 × 119,141.20
  4. Step 4: Simplify right side
    126,917.20x = 22,681,601,262.96
  5. Step 5: Solve for x
    x = 22,681,601,262.96/126,917.20
  6. Step 6: Final answer
    x = 178,711.80

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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.