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Finding the Fourth Proportional to 163,466.73, 225,578.39 and 99,910.89

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Solution

The fourth proportional to 163,466.73, 225,578.39 and 99,910.89 is: 137,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,466.73 : 225,578.39 = 99,910.89 : x
  2. Step 2: Convert to fraction form
    163,466.73/225,578.39 = 99,910.89/x
  3. Step 3: Cross multiply
    163,466.73x = 225,578.39 × 99,910.89
  4. Step 4: Simplify right side
    163,466.73x = 22,537,737,210.11
  5. Step 5: Solve for x
    x = 22,537,737,210.11/163,466.73
  6. Step 6: Final answer
    x = 137,873.54

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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.