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Finding the Fourth Proportional to 133,168.64, 183,770.88 and 72,738.56

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Solution

The fourth proportional to 133,168.64, 183,770.88 and 72,738.56 is: 100,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,168.64 : 183,770.88 = 72,738.56 : x
  2. Step 2: Convert to fraction form
    133,168.64/183,770.88 = 72,738.56/x
  3. Step 3: Cross multiply
    133,168.64x = 183,770.88 × 72,738.56
  4. Step 4: Simplify right side
    133,168.64x = 13,367,229,181.13
  5. Step 5: Solve for x
    x = 13,367,229,181.13/133,168.64
  6. Step 6: Final answer
    x = 100,378.21

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1.5x scale

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.