The value of $L$ is approximately 132.36.

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Here are 5 related questions to expand on this:

1. How does the logarithmic scale apply to sound intensity measurements?
2. What is the significance of the base-10 logarithm in decibel calculations?
3. How would the result change if the denominator value is increased?
4. Can this formula be used to calculate signal-to-noise ratios?
5. How is the decibel scale different from linear scales?

Tip: When dealing with logarithmic scales, small changes in input can result in large changes in the output due to the nature of the logarithm.