Home / 186,828.78-280,191.30-51,861.84

Finding the Fourth Proportional to 186,828.78, 280,191.30 and 51,861.84

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Solution

The fourth proportional to 186,828.78, 280,191.30 and 51,861.84 is: 77,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,828.78 : 280,191.30 = 51,861.84 : x
  2. Step 2: Convert to fraction form
    186,828.78/280,191.30 = 51,861.84/x
  3. Step 3: Cross multiply
    186,828.78x = 280,191.30 × 51,861.84
  4. Step 4: Simplify right side
    186,828.78x = 14,531,236,369.99
  5. Step 5: Solve for x
    x = 14,531,236,369.99/186,828.78
  6. Step 6: Final answer
    x = 77,778.36

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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.