Home / 186,021.97-279,026.78-80,841.04

Finding the Fourth Proportional to 186,021.97, 279,026.78 and 80,841.04

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Solution

The fourth proportional to 186,021.97, 279,026.78 and 80,841.04 is: 121,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,021.97 : 279,026.78 = 80,841.04 : x
  2. Step 2: Convert to fraction form
    186,021.97/279,026.78 = 80,841.04/x
  3. Step 3: Cross multiply
    186,021.97x = 279,026.78 × 80,841.04
  4. Step 4: Simplify right side
    186,021.97x = 22,556,813,981.28
  5. Step 5: Solve for x
    x = 22,556,813,981.28/186,021.97
  6. Step 6: Final answer
    x = 121,258.87

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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.