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Finding the Fourth Proportional to 118,331.60, 163,304.24 and 64,621.60

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Solution

The fourth proportional to 118,331.60, 163,304.24 and 64,621.60 is: 89,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,331.60 : 163,304.24 = 64,621.60 : x
  2. Step 2: Convert to fraction form
    118,331.60/163,304.24 = 64,621.60/x
  3. Step 3: Cross multiply
    118,331.60x = 163,304.24 × 64,621.60
  4. Step 4: Simplify right side
    118,331.60x = 10,552,981,275.58
  5. Step 5: Solve for x
    x = 10,552,981,275.58/118,331.60
  6. Step 6: Final answer
    x = 89,181.43

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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.