Home / 132,736.25-183,170.84-81,139.73

Finding the Fourth Proportional to 132,736.25, 183,170.84 and 81,139.73

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Solution

The fourth proportional to 132,736.25, 183,170.84 and 81,139.73 is: 111,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,736.25 : 183,170.84 = 81,139.73 : x
  2. Step 2: Convert to fraction form
    132,736.25/183,170.84 = 81,139.73/x
  3. Step 3: Cross multiply
    132,736.25x = 183,170.84 × 81,139.73
  4. Step 4: Simplify right side
    132,736.25x = 14,862,431,179.92
  5. Step 5: Solve for x
    x = 14,862,431,179.92/132,736.25
  6. Step 6: Final answer
    x = 111,969.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.