Home / 149,604.25-206,446.65-81,617.17

Finding the Fourth Proportional to 149,604.25, 206,446.65 and 81,617.17

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Solution

The fourth proportional to 149,604.25, 206,446.65 and 81,617.17 is: 112,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,604.25 : 206,446.65 = 81,617.17 : x
  2. Step 2: Convert to fraction form
    149,604.25/206,446.65 = 81,617.17/x
  3. Step 3: Cross multiply
    149,604.25x = 206,446.65 × 81,617.17
  4. Step 4: Simplify right side
    149,604.25x = 16,849,591,328.98
  5. Step 5: Solve for x
    x = 16,849,591,328.98/149,604.25
  6. Step 6: Final answer
    x = 112,627.76

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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.