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Finding the Fourth Proportional to 109,196.60, 163,794.80 and 30,310.80

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Solution

The fourth proportional to 109,196.60, 163,794.80 and 30,310.80 is: 45,466.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,196.60 : 163,794.80 = 30,310.80 : x
  2. Step 2: Convert to fraction form
    109,196.60/163,794.80 = 30,310.80/x
  3. Step 3: Cross multiply
    109,196.60x = 163,794.80 × 30,310.80
  4. Step 4: Simplify right side
    109,196.60x = 4,964,751,423.84
  5. Step 5: Solve for x
    x = 4,964,751,423.84/109,196.60
  6. Step 6: Final answer
    x = 45,466.17

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1.5x scale

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.