Home / 138,859.57-208,246.20-50,101.53

Finding the Fourth Proportional to 138,859.57, 208,246.20 and 50,101.53

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Solution

The fourth proportional to 138,859.57, 208,246.20 and 50,101.53 is: 75,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,859.57 : 208,246.20 = 50,101.53 : x
  2. Step 2: Convert to fraction form
    138,859.57/208,246.20 = 50,101.53/x
  3. Step 3: Cross multiply
    138,859.57x = 208,246.20 × 50,101.53
  4. Step 4: Simplify right side
    138,859.57x = 10,433,453,236.69
  5. Step 5: Solve for x
    x = 10,433,453,236.69/138,859.57
  6. Step 6: Final answer
    x = 75,136.72

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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.