Home / 129,836.34-194,754.33-72,170.25

Finding the Fourth Proportional to 129,836.34, 194,754.33 and 72,170.25

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Solution

The fourth proportional to 129,836.34, 194,754.33 and 72,170.25 is: 108,255.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,836.34 : 194,754.33 = 72,170.25 : x
  2. Step 2: Convert to fraction form
    129,836.34/194,754.33 = 72,170.25/x
  3. Step 3: Cross multiply
    129,836.34x = 194,754.33 × 72,170.25
  4. Step 4: Simplify right side
    129,836.34x = 14,055,468,192.78
  5. Step 5: Solve for x
    x = 14,055,468,192.78/129,836.34
  6. Step 6: Final answer
    x = 108,255.27

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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.