Home / 217,741.26-326,609.00-105,431.52

Finding the Fourth Proportional to 217,741.26, 326,609.00 and 105,431.52

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Solution

The fourth proportional to 217,741.26, 326,609.00 and 105,431.52 is: 158,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,741.26 : 326,609.00 = 105,431.52 : x
  2. Step 2: Convert to fraction form
    217,741.26/326,609.00 = 105,431.52/x
  3. Step 3: Cross multiply
    217,741.26x = 326,609.00 × 105,431.52
  4. Step 4: Simplify right side
    217,741.26x = 34,434,882,788.52
  5. Step 5: Solve for x
    x = 34,434,882,788.52/217,741.26
  6. Step 6: Final answer
    x = 158,145.88

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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.