Home / 149,895.27-206,855.04-81,912.67

Finding the Fourth Proportional to 149,895.27, 206,855.04 and 81,912.67

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Solution

The fourth proportional to 149,895.27, 206,855.04 and 81,912.67 is: 113,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,895.27 : 206,855.04 = 81,912.67 : x
  2. Step 2: Convert to fraction form
    149,895.27/206,855.04 = 81,912.67/x
  3. Step 3: Cross multiply
    149,895.27x = 206,855.04 × 81,912.67
  4. Step 4: Simplify right side
    149,895.27x = 16,944,048,629.36
  5. Step 5: Solve for x
    x = 16,944,048,629.36/149,895.27
  6. Step 6: Final answer
    x = 113,039.25

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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.