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Finding the Fourth Proportional to 109,349.60, 163,936.80 and 100,601.60

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Solution

The fourth proportional to 109,349.60, 163,936.80 and 100,601.60 is: 150,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,349.60 : 163,936.80 = 100,601.60 : x
  2. Step 2: Convert to fraction form
    109,349.60/163,936.80 = 100,601.60/x
  3. Step 3: Cross multiply
    109,349.60x = 163,936.80 × 100,601.60
  4. Step 4: Simplify right side
    109,349.60x = 16,492,304,378.88
  5. Step 5: Solve for x
    x = 16,492,304,378.88/109,349.60
  6. Step 6: Final answer
    x = 150,821.81

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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.