Home / 108,712.89-163,125-49,540.95

Finding the Fourth Proportional to 108,712.89, 163,125 and 49,540.95

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Solution

The fourth proportional to 108,712.89, 163,125 and 49,540.95 is: 74,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,712.89 : 163,125 = 49,540.95 : x
  2. Step 2: Convert to fraction form
    108,712.89/163,125 = 49,540.95/x
  3. Step 3: Cross multiply
    108,712.89x = 163,125 × 49,540.95
  4. Step 4: Simplify right side
    108,712.89x = 8,081,367,468.75
  5. Step 5: Solve for x
    x = 8,081,367,468.75/108,712.89
  6. Step 6: Final answer
    x = 74,336.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.