Home / 165,136.22-227,889.15-89,684.72

Finding the Fourth Proportional to 165,136.22, 227,889.15 and 89,684.72

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Solution

The fourth proportional to 165,136.22, 227,889.15 and 89,684.72 is: 123,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,136.22 : 227,889.15 = 89,684.72 : x
  2. Step 2: Convert to fraction form
    165,136.22/227,889.15 = 89,684.72/x
  3. Step 3: Cross multiply
    165,136.22x = 227,889.15 × 89,684.72
  4. Step 4: Simplify right side
    165,136.22x = 20,438,174,608.79
  5. Step 5: Solve for x
    x = 20,438,174,608.79/165,136.22
  6. Step 6: Final answer
    x = 123,765.55

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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.