Kotlin: fun for calculate measure for fixed ratio

fun calculateMeasure(
        widthMeasureSpec: Int, 
        heightMeasureSpec: Int, 
        heightRatio: Int, 
        widthRatio: Int
): Pair<Int, Int> {
    val originalWidth = MeasureSpec.getSize(widthMeasureSpec)

    val originalHeight = MeasureSpec.getSize(heightMeasureSpec)

    val calculatedHeight = originalWidth * heightRatio / widthRatio

    val finalWidth: Int
    val finalHeight: Int

    if (calculatedHeight > originalHeight) {
        finalWidth = originalHeight * widthRatio / heightRatio
        finalHeight = originalHeight
    } else {
        finalWidth = originalWidth
        finalHeight = calculatedHeight
    }

    return Pair(
            MeasureSpec.makeMeasureSpec(finalWidth, MeasureSpec.EXACTLY),
            MeasureSpec.makeMeasureSpec(finalHeight, MeasureSpec.EXACTLY)
    )
}