Home / 186,286.71-279,273.32-81,026.40

Finding the Fourth Proportional to 186,286.71, 279,273.32 and 81,026.40

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Solution

The fourth proportional to 186,286.71, 279,273.32 and 81,026.40 is: 121,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,286.71 : 279,273.32 = 81,026.40 : x
  2. Step 2: Convert to fraction form
    186,286.71/279,273.32 = 81,026.40/x
  3. Step 3: Cross multiply
    186,286.71x = 279,273.32 × 81,026.40
  4. Step 4: Simplify right side
    186,286.71x = 22,628,511,042.86
  5. Step 5: Solve for x
    x = 22,628,511,042.86/186,286.71
  6. Step 6: Final answer
    x = 121,471.42

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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.