Home / 217,559.38-326,299.38-91,165.81

Finding the Fourth Proportional to 217,559.38, 326,299.38 and 91,165.81

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Solution

The fourth proportional to 217,559.38, 326,299.38 and 91,165.81 is: 136,732.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,559.38 : 326,299.38 = 91,165.81 : x
  2. Step 2: Convert to fraction form
    217,559.38/326,299.38 = 91,165.81/x
  3. Step 3: Cross multiply
    217,559.38x = 326,299.38 × 91,165.81
  4. Step 4: Simplify right side
    217,559.38x = 29,747,347,280.20
  5. Step 5: Solve for x
    x = 29,747,347,280.20/217,559.38
  6. Step 6: Final answer
    x = 136,732.08

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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.