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Finding the Fourth Proportional to 109,194.60, 163,791.81 and 30,308.79

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Solution

The fourth proportional to 109,194.60, 163,791.81 and 30,308.79 is: 45,463.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,194.60 : 163,791.81 = 30,308.79 : x
  2. Step 2: Convert to fraction form
    109,194.60/163,791.81 = 30,308.79/x
  3. Step 3: Cross multiply
    109,194.60x = 163,791.81 × 30,308.79
  4. Step 4: Simplify right side
    109,194.60x = 4,964,331,573.01
  5. Step 5: Solve for x
    x = 4,964,331,573.01/109,194.60
  6. Step 6: Final answer
    x = 45,463.16

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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.