Home / 135,161.52-186,536.48-74,736.73

Finding the Fourth Proportional to 135,161.52, 186,536.48 and 74,736.73

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Solution

The fourth proportional to 135,161.52, 186,536.48 and 74,736.73 is: 103,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,161.52 : 186,536.48 = 74,736.73 : x
  2. Step 2: Convert to fraction form
    135,161.52/186,536.48 = 74,736.73/x
  3. Step 3: Cross multiply
    135,161.52x = 186,536.48 × 74,736.73
  4. Step 4: Simplify right side
    135,161.52x = 13,941,126,540.91
  5. Step 5: Solve for x
    x = 13,941,126,540.91/135,161.52
  6. Step 6: Final answer
    x = 103,144.20

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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.