Home / 132,028.44-197,755.80-81,272.76

Finding the Fourth Proportional to 132,028.44, 197,755.80 and 81,272.76

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Solution

The fourth proportional to 132,028.44, 197,755.80 and 81,272.76 is: 121,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,028.44 : 197,755.80 = 81,272.76 : x
  2. Step 2: Convert to fraction form
    132,028.44/197,755.80 = 81,272.76/x
  3. Step 3: Cross multiply
    132,028.44x = 197,755.80 × 81,272.76
  4. Step 4: Simplify right side
    132,028.44x = 16,072,159,672.01
  5. Step 5: Solve for x
    x = 16,072,159,672.01/132,028.44
  6. Step 6: Final answer
    x = 121,732.56

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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.