Home / 149,604.05-206,449.10-81,622.37

Finding the Fourth Proportional to 149,604.05, 206,449.10 and 81,622.37

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Solution

The fourth proportional to 149,604.05, 206,449.10 and 81,622.37 is: 112,636.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,604.05 : 206,449.10 = 81,622.37 : x
  2. Step 2: Convert to fraction form
    149,604.05/206,449.10 = 81,622.37/x
  3. Step 3: Cross multiply
    149,604.05x = 206,449.10 × 81,622.37
  4. Step 4: Simplify right side
    149,604.05x = 16,850,863,386.01
  5. Step 5: Solve for x
    x = 16,850,863,386.01/149,604.05
  6. Step 6: Final answer
    x = 112,636.42

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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.