Home / 129,664.20-194,496.30-31,168.20

Finding the Fourth Proportional to 129,664.20, 194,496.30 and 31,168.20

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Solution

The fourth proportional to 129,664.20, 194,496.30 and 31,168.20 is: 46,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,664.20 : 194,496.30 = 31,168.20 : x
  2. Step 2: Convert to fraction form
    129,664.20/194,496.30 = 31,168.20/x
  3. Step 3: Cross multiply
    129,664.20x = 194,496.30 × 31,168.20
  4. Step 4: Simplify right side
    129,664.20x = 6,062,099,577.66
  5. Step 5: Solve for x
    x = 6,062,099,577.66/129,664.20
  6. Step 6: Final answer
    x = 46,752.30

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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.