Home / 132,941.28-199,245.61-66,399.98

Finding the Fourth Proportional to 132,941.28, 199,245.61 and 66,399.98

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Solution

The fourth proportional to 132,941.28, 199,245.61 and 66,399.98 is: 99,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,941.28 : 199,245.61 = 66,399.98 : x
  2. Step 2: Convert to fraction form
    132,941.28/199,245.61 = 66,399.98/x
  3. Step 3: Cross multiply
    132,941.28x = 199,245.61 × 66,399.98
  4. Step 4: Simplify right side
    132,941.28x = 13,229,904,187.09
  5. Step 5: Solve for x
    x = 13,229,904,187.09/132,941.28
  6. Step 6: Final answer
    x = 99,516.90

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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.