Home / 149,949.56-206,930.38-81,966.82

Finding the Fourth Proportional to 149,949.56, 206,930.38 and 81,966.82

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Solution

The fourth proportional to 149,949.56, 206,930.38 and 81,966.82 is: 113,114.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,949.56 : 206,930.38 = 81,966.82 : x
  2. Step 2: Convert to fraction form
    149,949.56/206,930.38 = 81,966.82/x
  3. Step 3: Cross multiply
    149,949.56x = 206,930.38 × 81,966.82
  4. Step 4: Simplify right side
    149,949.56x = 16,961,425,209.99
  5. Step 5: Solve for x
    x = 16,961,425,209.99/149,949.56
  6. Step 6: Final answer
    x = 113,114.20

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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.