Home / 186,627.20-257,791.36-138,327.04

Finding the Fourth Proportional to 186,627.20, 257,791.36 and 138,327.04

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Solution

The fourth proportional to 186,627.20, 257,791.36 and 138,327.04 is: 191,073.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,627.20 : 257,791.36 = 138,327.04 : x
  2. Step 2: Convert to fraction form
    186,627.20/257,791.36 = 138,327.04/x
  3. Step 3: Cross multiply
    186,627.20x = 257,791.36 × 138,327.04
  4. Step 4: Simplify right side
    186,627.20x = 35,659,515,766.37
  5. Step 5: Solve for x
    x = 35,659,515,766.37/186,627.20
  6. Step 6: Final answer
    x = 191,073.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.