Home / 132,989.05-199,317.26-66,447.91

Finding the Fourth Proportional to 132,989.05, 199,317.26 and 66,447.91

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Solution

The fourth proportional to 132,989.05, 199,317.26 and 66,447.91 is: 99,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,989.05 : 199,317.26 = 66,447.91 : x
  2. Step 2: Convert to fraction form
    132,989.05/199,317.26 = 66,447.91/x
  3. Step 3: Cross multiply
    132,989.05x = 199,317.26 × 66,447.91
  4. Step 4: Simplify right side
    132,989.05x = 13,244,215,021.69
  5. Step 5: Solve for x
    x = 13,244,215,021.69/132,989.05
  6. Step 6: Final answer
    x = 99,588.76

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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.