Home / 149,350.74-206,103.39-81,367.50

Finding the Fourth Proportional to 149,350.74, 206,103.39 and 81,367.50

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Solution

The fourth proportional to 149,350.74, 206,103.39 and 81,367.50 is: 112,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,350.74 : 206,103.39 = 81,367.50 : x
  2. Step 2: Convert to fraction form
    149,350.74/206,103.39 = 81,367.50/x
  3. Step 3: Cross multiply
    149,350.74x = 206,103.39 × 81,367.50
  4. Step 4: Simplify right side
    149,350.74x = 16,770,116,555.31
  5. Step 5: Solve for x
    x = 16,770,116,555.31/149,350.74
  6. Step 6: Final answer
    x = 112,286.80

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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.