Home / 186,905.07-280,361.58-66,969.85

Finding the Fourth Proportional to 186,905.07, 280,361.58 and 66,969.85

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Solution

The fourth proportional to 186,905.07, 280,361.58 and 66,969.85 is: 100,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,905.07 : 280,361.58 = 66,969.85 : x
  2. Step 2: Convert to fraction form
    186,905.07/280,361.58 = 66,969.85/x
  3. Step 3: Cross multiply
    186,905.07x = 280,361.58 × 66,969.85
  4. Step 4: Simplify right side
    186,905.07x = 18,775,772,790.94
  5. Step 5: Solve for x
    x = 18,775,772,790.94/186,905.07
  6. Step 6: Final answer
    x = 100,456.20

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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.