Home / 186,861.57-280,125.66-68,505.27

Finding the Fourth Proportional to 186,861.57, 280,125.66 and 68,505.27

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Solution

The fourth proportional to 186,861.57, 280,125.66 and 68,505.27 is: 102,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,861.57 : 280,125.66 = 68,505.27 : x
  2. Step 2: Convert to fraction form
    186,861.57/280,125.66 = 68,505.27/x
  3. Step 3: Cross multiply
    186,861.57x = 280,125.66 × 68,505.27
  4. Step 4: Simplify right side
    186,861.57x = 19,190,083,972.23
  5. Step 5: Solve for x
    x = 19,190,083,972.23/186,861.57
  6. Step 6: Final answer
    x = 102,696.79

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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.