Home / 186,892.20-280,403.10-81,786.60

Finding the Fourth Proportional to 186,892.20, 280,403.10 and 81,786.60

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Solution

The fourth proportional to 186,892.20, 280,403.10 and 81,786.60 is: 122,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,892.20 : 280,403.10 = 81,786.60 : x
  2. Step 2: Convert to fraction form
    186,892.20/280,403.10 = 81,786.60/x
  3. Step 3: Cross multiply
    186,892.20x = 280,403.10 × 81,786.60
  4. Step 4: Simplify right side
    186,892.20x = 22,933,216,178.46
  5. Step 5: Solve for x
    x = 22,933,216,178.46/186,892.20
  6. Step 6: Final answer
    x = 122,708.26

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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.