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Finding the Fourth Proportional to 149,900.76, 224,739.99 and 90,722.43

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Solution

The fourth proportional to 149,900.76, 224,739.99 and 90,722.43 is: 136,016.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,900.76 : 224,739.99 = 90,722.43 : x
  2. Step 2: Convert to fraction form
    149,900.76/224,739.99 = 90,722.43/x
  3. Step 3: Cross multiply
    149,900.76x = 224,739.99 × 90,722.43
  4. Step 4: Simplify right side
    149,900.76x = 20,388,958,010.98
  5. Step 5: Solve for x
    x = 20,388,958,010.98/149,900.76
  6. Step 6: Final answer
    x = 136,016.38

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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.