Home / 133,144.03-199,705.11-39,649.78

Finding the Fourth Proportional to 133,144.03, 199,705.11 and 39,649.78

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Solution

The fourth proportional to 133,144.03, 199,705.11 and 39,649.78 is: 59,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,144.03 : 199,705.11 = 39,649.78 : x
  2. Step 2: Convert to fraction form
    133,144.03/199,705.11 = 39,649.78/x
  3. Step 3: Cross multiply
    133,144.03x = 199,705.11 × 39,649.78
  4. Step 4: Simplify right side
    133,144.03x = 7,918,263,676.38
  5. Step 5: Solve for x
    x = 7,918,263,676.38/133,144.03
  6. Step 6: Final answer
    x = 59,471.41

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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.