Home / 217,601.06-326,166.17-91,309.91

Finding the Fourth Proportional to 217,601.06, 326,166.17 and 91,309.91

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Solution

The fourth proportional to 217,601.06, 326,166.17 and 91,309.91 is: 136,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,601.06 : 326,166.17 = 91,309.91 : x
  2. Step 2: Convert to fraction form
    217,601.06/326,166.17 = 91,309.91/x
  3. Step 3: Cross multiply
    217,601.06x = 326,166.17 × 91,309.91
  4. Step 4: Simplify right side
    217,601.06x = 29,782,201,540.36
  5. Step 5: Solve for x
    x = 29,782,201,540.36/217,601.06
  6. Step 6: Final answer
    x = 136,866.07

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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.