Home / 186,286.05-279,272.34-81,025.74

Finding the Fourth Proportional to 186,286.05, 279,272.34 and 81,025.74

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Solution

The fourth proportional to 186,286.05, 279,272.34 and 81,025.74 is: 121,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,286.05 : 279,272.34 = 81,025.74 : x
  2. Step 2: Convert to fraction form
    186,286.05/279,272.34 = 81,025.74/x
  3. Step 3: Cross multiply
    186,286.05x = 279,272.34 × 81,025.74
  4. Step 4: Simplify right side
    186,286.05x = 22,628,248,010.03
  5. Step 5: Solve for x
    x = 22,628,248,010.03/186,286.05
  6. Step 6: Final answer
    x = 121,470.44

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1.5x scale

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.