Home / 149,884.25-206,834.09-81,903.56

Finding the Fourth Proportional to 149,884.25, 206,834.09 and 81,903.56

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Solution

The fourth proportional to 149,884.25, 206,834.09 and 81,903.56 is: 113,023.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,884.25 : 206,834.09 = 81,903.56 : x
  2. Step 2: Convert to fraction form
    149,884.25/206,834.09 = 81,903.56/x
  3. Step 3: Cross multiply
    149,884.25x = 206,834.09 × 81,903.56
  4. Step 4: Simplify right side
    149,884.25x = 16,940,446,856.67
  5. Step 5: Solve for x
    x = 16,940,446,856.67/149,884.25
  6. Step 6: Final answer
    x = 113,023.53

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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.