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Finding the Fourth Proportional to 171,741.69, 236,729.66 and 135,383.85

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Solution

The fourth proportional to 171,741.69, 236,729.66 and 135,383.85 is: 186,613.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,741.69 : 236,729.66 = 135,383.85 : x
  2. Step 2: Convert to fraction form
    171,741.69/236,729.66 = 135,383.85/x
  3. Step 3: Cross multiply
    171,741.69x = 236,729.66 × 135,383.85
  4. Step 4: Simplify right side
    171,741.69x = 32,049,372,103.07
  5. Step 5: Solve for x
    x = 32,049,372,103.07/171,741.69
  6. Step 6: Final answer
    x = 186,613.82

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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.