Home / 186,221.26-279,112.96-86,170.06

Finding the Fourth Proportional to 186,221.26, 279,112.96 and 86,170.06

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Solution

The fourth proportional to 186,221.26, 279,112.96 and 86,170.06 is: 129,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,221.26 : 279,112.96 = 86,170.06 : x
  2. Step 2: Convert to fraction form
    186,221.26/279,112.96 = 86,170.06/x
  3. Step 3: Cross multiply
    186,221.26x = 279,112.96 × 86,170.06
  4. Step 4: Simplify right side
    186,221.26x = 24,051,180,509.98
  5. Step 5: Solve for x
    x = 24,051,180,509.98/186,221.26
  6. Step 6: Final answer
    x = 129,153.78

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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.