Home / 186,440.20-279,660.30-81,464.20

Finding the Fourth Proportional to 186,440.20, 279,660.30 and 81,464.20

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Solution

The fourth proportional to 186,440.20, 279,660.30 and 81,464.20 is: 122,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,440.20 : 279,660.30 = 81,464.20 : x
  2. Step 2: Convert to fraction form
    186,440.20/279,660.30 = 81,464.20/x
  3. Step 3: Cross multiply
    186,440.20x = 279,660.30 × 81,464.20
  4. Step 4: Simplify right side
    186,440.20x = 22,782,302,611.26
  5. Step 5: Solve for x
    x = 22,782,302,611.26/186,440.20
  6. Step 6: Final answer
    x = 122,196.30

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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.