Home / 129,796.57-194,781.72-45,557.12

Finding the Fourth Proportional to 129,796.57, 194,781.72 and 45,557.12

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Solution

The fourth proportional to 129,796.57, 194,781.72 and 45,557.12 is: 68,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,796.57 : 194,781.72 = 45,557.12 : x
  2. Step 2: Convert to fraction form
    129,796.57/194,781.72 = 45,557.12/x
  3. Step 3: Cross multiply
    129,796.57x = 194,781.72 × 45,557.12
  4. Step 4: Simplify right side
    129,796.57x = 8,873,693,964.06
  5. Step 5: Solve for x
    x = 8,873,693,964.06/129,796.57
  6. Step 6: Final answer
    x = 68,366.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.