Home / 217,723.10-326,605.30-84,613.64

Finding the Fourth Proportional to 217,723.10, 326,605.30 and 84,613.64

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Solution

The fourth proportional to 217,723.10, 326,605.30 and 84,613.64 is: 126,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,723.10 : 326,605.30 = 84,613.64 : x
  2. Step 2: Convert to fraction form
    217,723.10/326,605.30 = 84,613.64/x
  3. Step 3: Cross multiply
    217,723.10x = 326,605.30 × 84,613.64
  4. Step 4: Simplify right side
    217,723.10x = 27,635,261,431.73
  5. Step 5: Solve for x
    x = 27,635,261,431.73/217,723.10
  6. Step 6: Final answer
    x = 126,928.48

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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.