Home / 149,734.70-206,625.03-81,738.14

Finding the Fourth Proportional to 149,734.70, 206,625.03 and 81,738.14

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Solution

The fourth proportional to 149,734.70, 206,625.03 and 81,738.14 is: 112,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,734.70 : 206,625.03 = 81,738.14 : x
  2. Step 2: Convert to fraction form
    149,734.70/206,625.03 = 81,738.14/x
  3. Step 3: Cross multiply
    149,734.70x = 206,625.03 × 81,738.14
  4. Step 4: Simplify right side
    149,734.70x = 16,889,145,629.64
  5. Step 5: Solve for x
    x = 16,889,145,629.64/149,734.70
  6. Step 6: Final answer
    x = 112,793.80

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1.5x scale

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.