Home / 132,872.42-199,203.39-66,278.27

Finding the Fourth Proportional to 132,872.42, 199,203.39 and 66,278.27

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Solution

The fourth proportional to 132,872.42, 199,203.39 and 66,278.27 is: 99,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,872.42 : 199,203.39 = 66,278.27 : x
  2. Step 2: Convert to fraction form
    132,872.42/199,203.39 = 66,278.27/x
  3. Step 3: Cross multiply
    132,872.42x = 199,203.39 × 66,278.27
  4. Step 4: Simplify right side
    132,872.42x = 13,202,856,565.34
  5. Step 5: Solve for x
    x = 13,202,856,565.34/132,872.42
  6. Step 6: Final answer
    x = 99,364.91

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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.