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Finding the Fourth Proportional to 165,240.33, 228,033.09 and 89,788.83

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Solution

The fourth proportional to 165,240.33, 228,033.09 and 89,788.83 is: 123,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,240.33 : 228,033.09 = 89,788.83 : x
  2. Step 2: Convert to fraction form
    165,240.33/228,033.09 = 89,788.83/x
  3. Step 3: Cross multiply
    165,240.33x = 228,033.09 × 89,788.83
  4. Step 4: Simplify right side
    165,240.33x = 20,474,824,352.38
  5. Step 5: Solve for x
    x = 20,474,824,352.38/165,240.33
  6. Step 6: Final answer
    x = 123,909.36

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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.