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Finding the Fourth Proportional to 100,738.40, 151,064.40 and 50,799.20

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Solution

The fourth proportional to 100,738.40, 151,064.40 and 50,799.20 is: 76,177.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,738.40 : 151,064.40 = 50,799.20 : x
  2. Step 2: Convert to fraction form
    100,738.40/151,064.40 = 50,799.20/x
  3. Step 3: Cross multiply
    100,738.40x = 151,064.40 × 50,799.20
  4. Step 4: Simplify right side
    100,738.40x = 7,673,950,668.48
  5. Step 5: Solve for x
    x = 7,673,950,668.48/100,738.40
  6. Step 6: Final answer
    x = 76,177.02

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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.