Home / 186,961.89-280,479.80-68,634.25

Finding the Fourth Proportional to 186,961.89, 280,479.80 and 68,634.25

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Solution

The fourth proportional to 186,961.89, 280,479.80 and 68,634.25 is: 102,964.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,961.89 : 280,479.80 = 68,634.25 : x
  2. Step 2: Convert to fraction form
    186,961.89/280,479.80 = 68,634.25/x
  3. Step 3: Cross multiply
    186,961.89x = 280,479.80 × 68,634.25
  4. Step 4: Simplify right side
    186,961.89x = 19,250,520,713.15
  5. Step 5: Solve for x
    x = 19,250,520,713.15/186,961.89
  6. Step 6: Final answer
    x = 102,964.94

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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.