Home / 186,292.41-279,441.05-81,107.43

Finding the Fourth Proportional to 186,292.41, 279,441.05 and 81,107.43

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Solution

The fourth proportional to 186,292.41, 279,441.05 and 81,107.43 is: 121,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,292.41 : 279,441.05 = 81,107.43 : x
  2. Step 2: Convert to fraction form
    186,292.41/279,441.05 = 81,107.43/x
  3. Step 3: Cross multiply
    186,292.41x = 279,441.05 × 81,107.43
  4. Step 4: Simplify right side
    186,292.41x = 22,664,744,996.46
  5. Step 5: Solve for x
    x = 22,664,744,996.46/186,292.41
  6. Step 6: Final answer
    x = 121,662.20

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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.