Home / 149,895.97-206,847.61-81,913.43

Finding the Fourth Proportional to 149,895.97, 206,847.61 and 81,913.43

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Solution

The fourth proportional to 149,895.97, 206,847.61 and 81,913.43 is: 113,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,895.97 : 206,847.61 = 81,913.43 : x
  2. Step 2: Convert to fraction form
    149,895.97/206,847.61 = 81,913.43/x
  3. Step 3: Cross multiply
    149,895.97x = 206,847.61 × 81,913.43
  4. Step 4: Simplify right side
    149,895.97x = 16,943,597,534.74
  5. Step 5: Solve for x
    x = 16,943,597,534.74/149,895.97
  6. Step 6: Final answer
    x = 113,035.71

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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.