Home / 135,883.74-187,536.86-82,169.15

Finding the Fourth Proportional to 135,883.74, 187,536.86 and 82,169.15

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Solution

The fourth proportional to 135,883.74, 187,536.86 and 82,169.15 is: 113,403.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,883.74 : 187,536.86 = 82,169.15 : x
  2. Step 2: Convert to fraction form
    135,883.74/187,536.86 = 82,169.15/x
  3. Step 3: Cross multiply
    135,883.74x = 187,536.86 × 82,169.15
  4. Step 4: Simplify right side
    135,883.74x = 15,409,743,031.34
  5. Step 5: Solve for x
    x = 15,409,743,031.34/135,883.74
  6. Step 6: Final answer
    x = 113,403.88

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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.