Home / 149,441.39-206,226.46-81,458.95

Finding the Fourth Proportional to 149,441.39, 206,226.46 and 81,458.95

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Solution

The fourth proportional to 149,441.39, 206,226.46 and 81,458.95 is: 112,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,441.39 : 206,226.46 = 81,458.95 : x
  2. Step 2: Convert to fraction form
    149,441.39/206,226.46 = 81,458.95/x
  3. Step 3: Cross multiply
    149,441.39x = 206,226.46 × 81,458.95
  4. Step 4: Simplify right side
    149,441.39x = 16,798,990,408.54
  5. Step 5: Solve for x
    x = 16,798,990,408.54/149,441.39
  6. Step 6: Final answer
    x = 112,411.90

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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.