Home / 186,867.57-280,134.68-68,511.30

Finding the Fourth Proportional to 186,867.57, 280,134.68 and 68,511.30

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Solution

The fourth proportional to 186,867.57, 280,134.68 and 68,511.30 is: 102,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,867.57 : 280,134.68 = 68,511.30 : x
  2. Step 2: Convert to fraction form
    186,867.57/280,134.68 = 68,511.30/x
  3. Step 3: Cross multiply
    186,867.57x = 280,134.68 × 68,511.30
  4. Step 4: Simplify right side
    186,867.57x = 19,192,390,759.33
  5. Step 5: Solve for x
    x = 19,192,390,759.33/186,867.57
  6. Step 6: Final answer
    x = 102,705.84

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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.