Home / 149,134.32-205,805.39-82,066.32

Finding the Fourth Proportional to 149,134.32, 205,805.39 and 82,066.32

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Solution

The fourth proportional to 149,134.32, 205,805.39 and 82,066.32 is: 113,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,134.32 : 205,805.39 = 82,066.32 : x
  2. Step 2: Convert to fraction form
    149,134.32/205,805.39 = 82,066.32/x
  3. Step 3: Cross multiply
    149,134.32x = 205,805.39 × 82,066.32
  4. Step 4: Simplify right side
    149,134.32x = 16,889,690,583.13
  5. Step 5: Solve for x
    x = 16,889,690,583.13/149,134.32
  6. Step 6: Final answer
    x = 113,251.53

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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.