Home / 126,540.24-189,772.01-66,536.39

Finding the Fourth Proportional to 126,540.24, 189,772.01 and 66,536.39

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Solution

The fourth proportional to 126,540.24, 189,772.01 and 66,536.39 is: 99,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,540.24 : 189,772.01 = 66,536.39 : x
  2. Step 2: Convert to fraction form
    126,540.24/189,772.01 = 66,536.39/x
  3. Step 3: Cross multiply
    126,540.24x = 189,772.01 × 66,536.39
  4. Step 4: Simplify right side
    126,540.24x = 12,626,743,519.58
  5. Step 5: Solve for x
    x = 12,626,743,519.58/126,540.24
  6. Step 6: Final answer
    x = 99,784.41

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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.