Home / 149,716.19-206,611.47-81,736.03

Finding the Fourth Proportional to 149,716.19, 206,611.47 and 81,736.03

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Solution

The fourth proportional to 149,716.19, 206,611.47 and 81,736.03 is: 112,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,716.19 : 206,611.47 = 81,736.03 : x
  2. Step 2: Convert to fraction form
    149,716.19/206,611.47 = 81,736.03/x
  3. Step 3: Cross multiply
    149,716.19x = 206,611.47 × 81,736.03
  4. Step 4: Simplify right side
    149,716.19x = 16,887,600,358.09
  5. Step 5: Solve for x
    x = 16,887,600,358.09/149,716.19
  6. Step 6: Final answer
    x = 112,797.42

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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.