Home / 138,936.20-208,404.30-50,160.20

Finding the Fourth Proportional to 138,936.20, 208,404.30 and 50,160.20

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Solution

The fourth proportional to 138,936.20, 208,404.30 and 50,160.20 is: 75,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,936.20 : 208,404.30 = 50,160.20 : x
  2. Step 2: Convert to fraction form
    138,936.20/208,404.30 = 50,160.20/x
  3. Step 3: Cross multiply
    138,936.20x = 208,404.30 × 50,160.20
  4. Step 4: Simplify right side
    138,936.20x = 10,453,601,368.86
  5. Step 5: Solve for x
    x = 10,453,601,368.86/138,936.20
  6. Step 6: Final answer
    x = 75,240.30

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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.