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Finding the Fourth Proportional to 163,618.95, 225,906 and 125,310.81

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Solution

The fourth proportional to 163,618.95, 225,906 and 125,310.81 is: 173,014.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,618.95 : 225,906 = 125,310.81 : x
  2. Step 2: Convert to fraction form
    163,618.95/225,906 = 125,310.81/x
  3. Step 3: Cross multiply
    163,618.95x = 225,906 × 125,310.81
  4. Step 4: Simplify right side
    163,618.95x = 28,308,463,843.86
  5. Step 5: Solve for x
    x = 28,308,463,843.86/163,618.95
  6. Step 6: Final answer
    x = 173,014.58

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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.