Home / 186,738.68-279,976.81-68,394.64

Finding the Fourth Proportional to 186,738.68, 279,976.81 and 68,394.64

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Solution

The fourth proportional to 186,738.68, 279,976.81 and 68,394.64 is: 102,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,738.68 : 279,976.81 = 68,394.64 : x
  2. Step 2: Convert to fraction form
    186,738.68/279,976.81 = 68,394.64/x
  3. Step 3: Cross multiply
    186,738.68x = 279,976.81 × 68,394.64
  4. Step 4: Simplify right side
    186,738.68x = 19,148,913,128.30
  5. Step 5: Solve for x
    x = 19,148,913,128.30/186,738.68
  6. Step 6: Final answer
    x = 102,543.90

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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.