Home / 133,003.90-199,635.45-66,519.10

Finding the Fourth Proportional to 133,003.90, 199,635.45 and 66,519.10

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Solution

The fourth proportional to 133,003.90, 199,635.45 and 66,519.10 is: 99,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,003.90 : 199,635.45 = 66,519.10 : x
  2. Step 2: Convert to fraction form
    133,003.90/199,635.45 = 66,519.10/x
  3. Step 3: Cross multiply
    133,003.90x = 199,635.45 × 66,519.10
  4. Step 4: Simplify right side
    133,003.90x = 13,279,570,462.10
  5. Step 5: Solve for x
    x = 13,279,570,462.10/133,003.90
  6. Step 6: Final answer
    x = 99,843.47

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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.