Home / 186,724.83-280,086.78-80,039.61

Finding the Fourth Proportional to 186,724.83, 280,086.78 and 80,039.61

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Solution

The fourth proportional to 186,724.83, 280,086.78 and 80,039.61 is: 120,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,724.83 : 280,086.78 = 80,039.61 : x
  2. Step 2: Convert to fraction form
    186,724.83/280,086.78 = 80,039.61/x
  3. Step 3: Cross multiply
    186,724.83x = 280,086.78 × 80,039.61
  4. Step 4: Simplify right side
    186,724.83x = 22,418,036,637.36
  5. Step 5: Solve for x
    x = 22,418,036,637.36/186,724.83
  6. Step 6: Final answer
    x = 120,059.22

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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.