Home / 129,611.22-194,416.74-74,168.34

Finding the Fourth Proportional to 129,611.22, 194,416.74 and 74,168.34

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Solution

The fourth proportional to 129,611.22, 194,416.74 and 74,168.34 is: 111,252.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,611.22 : 194,416.74 = 74,168.34 : x
  2. Step 2: Convert to fraction form
    129,611.22/194,416.74 = 74,168.34/x
  3. Step 3: Cross multiply
    129,611.22x = 194,416.74 × 74,168.34
  4. Step 4: Simplify right side
    129,611.22x = 14,419,566,874.01
  5. Step 5: Solve for x
    x = 14,419,566,874.01/129,611.22
  6. Step 6: Final answer
    x = 111,252.46

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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.