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Finding the Fourth Proportional to 180,135.95, 248,422.32 and 108,391.41

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Solution

The fourth proportional to 180,135.95, 248,422.32 and 108,391.41 is: 149,480.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,135.95 : 248,422.32 = 108,391.41 : x
  2. Step 2: Convert to fraction form
    180,135.95/248,422.32 = 108,391.41/x
  3. Step 3: Cross multiply
    180,135.95x = 248,422.32 × 108,391.41
  4. Step 4: Simplify right side
    180,135.95x = 26,926,845,540.27
  5. Step 5: Solve for x
    x = 26,926,845,540.27/180,135.95
  6. Step 6: Final answer
    x = 149,480.69

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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.