Home / 149,361.45-206,195.00-101,217.72

Finding the Fourth Proportional to 149,361.45, 206,195.00 and 101,217.72

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Solution

The fourth proportional to 149,361.45, 206,195.00 and 101,217.72 is: 139,732.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,361.45 : 206,195.00 = 101,217.72 : x
  2. Step 2: Convert to fraction form
    149,361.45/206,195.00 = 101,217.72/x
  3. Step 3: Cross multiply
    149,361.45x = 206,195.00 × 101,217.72
  4. Step 4: Simplify right side
    149,361.45x = 20,870,587,269.31
  5. Step 5: Solve for x
    x = 20,870,587,269.31/149,361.45
  6. Step 6: Final answer
    x = 139,732.09

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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.