Home / 149,434.24-206,217.94-81,451.22

Finding the Fourth Proportional to 149,434.24, 206,217.94 and 81,451.22

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Solution

The fourth proportional to 149,434.24, 206,217.94 and 81,451.22 is: 112,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,434.24 : 206,217.94 = 81,451.22 : x
  2. Step 2: Convert to fraction form
    149,434.24/206,217.94 = 81,451.22/x
  3. Step 3: Cross multiply
    149,434.24x = 206,217.94 × 81,451.22
  4. Step 4: Simplify right side
    149,434.24x = 16,796,702,798.89
  5. Step 5: Solve for x
    x = 16,796,702,798.89/149,434.24
  6. Step 6: Final answer
    x = 112,401.97

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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.