Home / 127,936.20-191,558.70-100,288.20

Finding the Fourth Proportional to 127,936.20, 191,558.70 and 100,288.20

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Solution

The fourth proportional to 127,936.20, 191,558.70 and 100,288.20 is: 150,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,936.20 : 191,558.70 = 100,288.20 : x
  2. Step 2: Convert to fraction form
    127,936.20/191,558.70 = 100,288.20/x
  3. Step 3: Cross multiply
    127,936.20x = 191,558.70 × 100,288.20
  4. Step 4: Simplify right side
    127,936.20x = 19,211,077,217.34
  5. Step 5: Solve for x
    x = 19,211,077,217.34/127,936.20
  6. Step 6: Final answer
    x = 150,161.39

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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.